Axle May Crack and Separate – 2021-2022 Delco C-Series, D-Series, & F-Series Trailers

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For any questions or additional information contact DELCO directly at INFO@DELCOTRAILERS.COM or 903-405-3155 AXLE WARRANTY ADDITIONAL INFORMATION Only a small percentage of potential trailers will be affected. You can inspect the axles of your trailer to confirm if they will or will not qualify to be replaced. If axles need to be replaced, please see below to schedule an appointment. HOW TO INSPECT YOUR AXLES Information on axles can be found on the axle itself. Each axle has a unique serial number and date of manufacture. Only 7k straight axles manufactured between October 7, 2021, and October 25, 2021, are affected. The serial number range on these axles is 2020015994 through 2020017408. This information can be found on the axle label, which is located on the main beam of the axle. Please see the attached picture to note where to find either the date or serial number of the axle. If you have any difficulty identifying the axle, such as a damaged identification, please contact Delco for assistance. WHAT TO DO TO IF YOUR AXLES QUALIFY FOR REPLACEMENT Contact your local service point from the list below to set up an appointment to have these axles replaced. ARIZONA: HAYS TRAILER SALES PHONE: 480-357-1018 CALIFORNIA: BRONCO TRAILERS PHONE: 559-308-0022 FLORIDA: LOAD RUNNER TRAILERS PHONE: 863-581-3252 MARYLAND: COX TRAILER SALES PHONE: 301-367-7314 MISSOURI; EASTERN: POPLAR BLUFF TRAILERS PHONE: 573-686-7273 MISSOURI; WESTERN: COOPER TRAILERS PHONE: 816-690-4653 OKLAHOMA; CENTRAL: NATIONWIDE TRAILERS PHONE: 918-346-6238 OKLAHOMA; PANHANDLE: MIDWEST TRAILERS PHONE: 580-522-1757 WASHINGTON: FINE FAMILY LLC PHONE: 360-923-2135 For any questions or additional information contact DELCO directly at INFO@DELCOTRAILERS.COM or 903-405-3155 TEXAS: D&D RETAIL, L.P. PHONE: 830-379-7340 LOCATION: 516 E IH-10, Seguin, TX 78155 FLEX SERVICES PHONE: 940-612-4377 LOCATION: 2827 W Hwy 82, Gainesville, TX 76240 C&S KIRBY HONEYCUT LLC PHONE: 817-451-8822 LOCATION: 4111 E Loop 820 S, Fort Worth, TX 76119 TRAILERS AND MORE LLC PHONE: 903-989-5000 LOCATION: 12643 State HWY 121, Trenton, TX 75490 SUPERIOR TRAILERS PHONE: 361-289-5648 LOCATION: 5825 Leopard St, Corpus Christi , TX 78408 LONE STAR TRAILERS DBA PHONE: 254-749-2624 LOCATION: 6610 N Interstate 35 Frontage, Lacy-Lakeview, TX 76705 WHAT IF I AM NOT ABLE TO INSPECT THE AXLES You may contact your local dealer to set up an appoint to have these axles inspected free of charge. You can also call Delco Trailers at 903-405-3155 and have us walk you through the inspection process. If you are unsure if you’re axles qualify, you can send pictures of the axle label to info@delcotrailers.com and have our team review them with you.

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IMPORTANT SAFETY RECALL RECALL NO. 22V-564 September 2022 This notice applies to your trailer: Make Model Model Year Vehicle Identification Number (VIN) Delco Trailers X-Series 2021/22 XXXXXXXXXXXXXXXXX Dear Delco Trailers Customer: This notice is sent to you in accordance with the requirements of the National Traffic and Motor Vehicle Safety Act. Delco Trailers, Ltd. has decided that a defect which relates to motor vehicle safety exists in certain trailers manufactured between October 07, 2021, and March 31, 2022. Specifically, certain model year 2021-2022 Delco C-Series, D-Series, and F-Series trailers are equipped with 7,000-pound, tubular straight axles that may contain a defective weld. Our records indicate that you purchased a trailer that may have subject axles. WHAT IS THE PROBLEM? Due to a manufacturing error by one of Delco’s axle suppliers, the weld joining the spindle to the main beam of axle may not be properly placed. This could result in improper weld penetration or in an otherwise deficient weld. The potential deficient weld could fail when stressed by a heavy load or hard impact. Upon examination of spindle welds, any evidence of cracking means axle has been overstressed and is evidence that it could break under further pressure. A weld failure could result in cracking of axle or separation of spindle, which increases the risk of a crash. WHAT ARE WE DOING ABOUT THE PROBLEM? To correct the problem, Delco is recalling the entire population of axles specified by the supplier. Delco will also cover the cost to inspect your trailer’s axles to identify if your trailer is equipped with axle(s) included in the axle supplier’s recall. The inspection and any required replacement of axles will be conducted free of charge to customers. WHAT IF YOU ARE A LESSOR? Federal law requires that you forward a copy of this safety recall notice to the lessee within 10 days. WHAT SHOULD YOU DO? At your earliest convenience, you should contact your nearest Delco Trailers dealer to arrange an inspection. Any axles within the supplier’s recall range will be replaced free of charge. The inspection will take approximately 0.5 hours. For axles that need to be replaced, you will be able to schedule a time for the replacement, which will take approximately 1-2 hours. WHAT IF YOU HAVE ALREADY PAID FOR THIS REPAIR? You may be eligible to receive a reimbursement for the cost of repairs made prior to receiving this notice. Please contact Delco at peterg@delcotrailers.com or 903-218-0675 to determine whether you are eligible for reimbursement. QUESTIONS OR CONCERNS? If you have questions or concerns about this recall, or are unable to contact a Delco Trailers dealership please contact Delco at peterg@delcotrailers.com or 903-218-0675. If you have a complaint relative to this recall, you may report it to the following: Administrator National Highway Traffic Safety Administration 1200 New Jersey Avenue, SE Washington, DC 20590 You may also call the toll-free Vehicle Safety Hotline at 1-888-327-4236 (TTY: 1-800-424-9153); or go to http://www.safercar.gov. If you are no longer the owner of the trailer(s), please forward this notice to the new owner or provide the new owner’s contact information to Delco at the number above so that we can notify the new owner of this recall. Delco is taking this action in the interest of safety and satisfaction with our products. We apologize for any inconvenience and thank you for your attention to this matter. Sincerely, Delco Trailers, Ltd.

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1 From: Sent: To: Subject: IMPORTANT SAFETY RECALL DELCO TRAILERS Dear Delco Customer, As you are aware, Delco recently issued a Stop Sale Notice for a range of trailers that may be equipped with potentially defective axles. Based on information from the axle manufacturer, we are issuing this Recall Notice. Delco Trailers is committed to standing behind our product and supporting our customers. Delco will be contacting all end users that have purchased potentially affected trailers with instructions on how to resolve this issue. We have also attached an instruction sheet on how to properly identify and replace affected axles. We are deeply appreciative of your cooperation and partnership. Please contact us with any questions or concerns. 2 IMPORTANT SAFETY RECALL RECALL NO. 22V-564 August 2022 Dear Delco Trailers Dealer: Delco Trailers, Ltd. has determined that that certain model year 2021-2022 trailers, manufactured by Delco between October 07, 2021, and March 31, 2022, contain a safety-related defect. As a result, Delco is conducting a voluntary safety recall to address the issue. What Trailers Are Affected? The trailers included in the recall are: Make Models/Series Model Years Vehicle Identification Number (VIN) Range Delco C-Series D-Series F-Series 2021-22 5WWBC1223N – 5WWPF2528N Our records indicate that trailer(s) sold or in your present lot inventory fall within this range. IMPORTANT: If some of the units are still in your inventory, Federal law requires you to complete the recall remedy on those units before retail delivery. What is the Problem? Delco has decided that a defect which relates to motor vehicle safety exists in certain model year 2021-211 C-Series, DSeries, and F-Series trailers manufactured by Delco between October 7, 2021, and March 31, 2022. Due to the supplier’s manufacturing error, the weld joining the spindle to the main beam of axle may not be properly placed, which could result in improper weld penetration or in an otherwise deficient weld. Subject trailers equipped with axles with improper weld penetration or otherwise deficient weld could fail when stressed by a heavy load or hard impact. A weld failure could result in cracking of axle or separation of spindle, which increases the risk of a crash. What Are We Doing About the Problem? To correct this condition, Delco will provide instruction to inspect the axle for affected date ranges and serial numbers on axles equipped on Delco Trailers as provided by the axle manufacturer. A list of serial numbers and manufacture dates of the axles are attached. 3 Trailers equipped with axles that fall into this range will be replaced free of charge. Delco will supply replacement axles where feasible or reimburse cost of alternative axles in the event that Delco is unable to supply said axles. Delco will also reimburse labor cost of replacement at standard labor rates. Furthermore, Delco is also identifying and contacting all end users of potentially affected trailers in order to have trailers inspected and have the axles replaced where required. Please contact Delco Trailers to replace suspect axles at peterg@delcotrailers.com or 903-218-0675. Questions or Concerns? If you have questions or concerns about this recall, please contact Delco at peterg@delcotrailers.com or 903-218-0675. We are taking this action in the interest of safety and satisfaction with our products. We apologize for any inconvenience and thank you for your attention to this matter. Sincerely, Delco Trailers, Ltd. 4 7K AXLE REPLACEMENT PROCEDURE Due to a manufacturing issue at one of our axle suppliers, we are recalling and replacing certain axles on Delco Trailers. -How to Identify Affected Axles: Date, Serial Number, and Location Only 7k straight axles manufactured between October 7, 2021, and October 25, 2021, are affected. The serial number range on these axles is 2020015994 through 2020017408. This information can be found on the axle label, which is located on the main beam of the axle. Please see the attached picture to note where to find either the date or serial number of the axle. If you have any difficulty identifying the axle, such as a damaged identification, please contact Delco for assistance. -How to Replace Axles Remove Old Axle: Start by loosening the lugs nuts on both tires. Next, raise the trailer using a hydraulic jack, and secure it on jack stands at four points. With the trailer securely resting on the jack stands, remove the tires and set aside. If the trailer is equipped with brakes, disconnect the brake lines and take care to ensure the lines do not get snagged during removal of the axle. If the trailer is equipped with shocks, disconnect the lower shock mount from the axle and set the mounting bolt aside. Inspect the shocks for leaks or worn mounting grommets and replace if they are worn. Remove the wheel hubs and brake hardware and set aside. The axle is secured to the leaf springs with a U-Bolt. Remove the U-Bolts on both ends of the axle, and the axle should be completely disconnected from the trailer. With an assistant on the other end of the axle, lift and move it to the side until completely free of the leaf springs. Once clear of the springs, pull the axle all the way out from under the trailer. Attach New Axle: Slide the axle under the trailer and position it so the leaf springs rest on the spring seats. Using new hardware, bolt the axle in place, torqued between 45-70 ft. lbs. and ensure the axle is oriented to have the brake wire facing the rear of the trailer. Reconnect the shock absorbers if applicable. Reinstall the wheel hubs and brake assembly and reconnect the brake lines. Finally, install the wheels and lower the trailer from the jack stands. Be sure to check brakes for proper function, and the job is complete. -Reporting and Compensation After inspecting axles, Dealers will need to document whether the axles need to be replaced or if the axles are not within the range above. Axles that are replaced will need documentation of serial number of the old axle as well as the serial number of the new axle that it is replaced with. Trailers that are inspected and are determined to not require replacement axles will also need to be documented and this documentation will need to be returned to Delco as well. Delco will be compensating Dealerships $20 per inspection as well as compensating Dealerships 2 hours of shop labor for each set (2) axles replaced. -Additional Information If you need any additional information, please contact Delco at (903) 218-0675 or peterg@delcotrailers.com. Delco Trailers strives to stand beside their dealers and behind their products. We want this to be as an efficient process as possible; and we sincerely thank you for your support.

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 22V-564 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : Delco Trailers LLC Submission Date : SEP 09, 2022 NHTSA Recall No. : 22V-564 Manufacturer Recall No. : NR Manufacturer Information : Manufacturer Name : Delco Trailers LLC Address : 4131 County Road 35500 Sumner TX 75486 Company phone : 739-9400 Population : Number of potentially involved : 1,209 Estimated percentage with defect : 1 % Vehicle Information : Vehicle 1 : 2021-2022 Delco Trailers C-Series Vehicle Type : TRAILERS Body Style : OTHER Power Train : NR Descriptive Information : Delco determined the population based on production and shipment dates from its supplier Besser Pro, LLC. According to Besser Pro, axles were produced with improper weld settings. Delco’s records indicate it shipped 612 C-Series trailers. Production Dates : OCT 12, 2021 – MAR 31, 2022 VIN Range 1 : Begin : 5WWBC1223N6021247 End : 5WWBC2029N6020144 Not sequential Vehicle 2 : 2021-2022 Delco Trailers F-Series Vehicle Type : TRAILERS Body Style : OTHER Power Train : NR Descriptive Information : Delco determined the population based on production and shipment dates from its supplier Besser Pro, LLC. According to Besser Pro, axles were produced with improper weld settings. Delco’s records indicate it shipped 131 F-Series trailers. Production Dates : OCT 15, 2021 – MAR 31, 2022 VIN Range 1 : Begin : 5WWBC1223N6021247 End : 5WWBC2029N6020144 ✔ Not sequential Part 573 Safety Recall Report 22V-564 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Vehicle 3 : 2021-2022 Delco Trailers D-Series Vehicle Type : TRAILERS Body Style : OTHER Power Train : NR Descriptive Information : Delco determined the population based on production and shipment dates from its supplier Besser Pro, LLC. According to Besser Pro, axles were produced with improper weld settings. Delco’s records indicate it shipped 466 D-Series trailers. Production Dates : NOV 01, 2021 – MAR 31, 2022 VIN Range 1 : Begin : 5WWBC1223N6021247 End : 5WWBC2029N6020144 ✔ Not sequential Description of Defect : Description of the Defect : Besser Pro, LLC, the axle supplier, notified Delco of a safety-related defect. According to Besser Pro, due to a manufacturing error, the weld joining the spindle to the main beam of axle may not be properly placed, which could result in improper weld penetration or in an otherwise deficient weld. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : The potential deficient weld could fail when stressed by a heavy load or hard impact. A weld failure could result in cracking of axle or separation of spindle, which increases the risk of a crash. Description of the Cause : According to Besser Pro, minute misalignment of the welding head of its autowelding machine resulted in the weld not being placed in the center of the joint. This resulted in unequal weld penetration on the joined components. Identification of Any Warning that can Occur : Upon examination of spindle welds, any evidence of cracking means the axle likely has been overstressed and could break under further pressure. Involved Components : Component Name 1 : 7,000 lb. Axle Component Description : Axle Component Part Number : TS70950800865CETC Component Name 2 : 7,000 lb. Axle Component Description : Axle Component Part Number : TS70950770865CETC Part 573 Safety Recall Report 22V-564 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 Component Name 3 : 7,000 lb. Axle Component Description : Axle Component Part Number : TS70720565865CITC Component Name 4 : 7,000 lb. Axle Component Description : Axle Component Part Number : TS70730580865CETC Component Name 5 : 7,000 lb. Axle Component Description : Axle Component Part Number : TS70740580865CETC Component Name 6 : 7,000 lb. Axle Component Description : Axle Component Part Number : TS70740580865CITC Supplier Identification : Component Manufacturer Name : Besser Pro, LLC Address : 1500 30th St NW Paris Texas 75460 Country : United States Chronology : Jul 5, 2022: Delco learned of an accident involving a trailer that was equipped with a Besser Pro axle. Jul. 5-11, 2022: Delco notified the supplier of the alleged accident. Delco reviewed warranty and complaint information. Jul. 21, 2022: Besser Pro notified Delco that it had determined that a welding issue resulted in a defect. Besser Pro also notified Delco that it had submitted a defect information report to NHTSA related to the welding issue on the axles. Jul. 21-25, 2022: Delco investigated trailers equipped with the defective axles. Jul. 26, 2022: Based on the defect notice from Besser Pro, Delco determined that a population of trailers Part 573 Safety Recall Report 22V-564 Page 4 The information contained in this report was submitted pursuant to 49 CFR §573 contained a safety-related defect. Description of Remedy : Description of Remedy Program : Delco will notify customers who purchased potentially affected trailers and inspect the axles for suspect serial numbers (provided by Besser). For trailers equipped with suspect axles, Delco will replace the axles with properly welded axles, free of charge. The affected trailer population remains under warranty and, accordingly, the trailers are exempt from the reimbursement requirements. How Remedy Component Differs from Recalled Component : Remedy components will be manufactured with a properly calibrated and aligned welding machine. The part number for the replacement axles will remain the same. Identify How/When Recall Condition was Corrected in Production : According to Besser Pro, the weld settings on its auto-weld machine were recalibrated on Oct. 25, 2021. The welding head was adjusted to correct the position and to ensure equal weld penetration on both components being joined. Recall Schedule : Description of Recall Schedule : Delco plans to begin notifying consumers and dealers of this condition on the following dates. Planned Dealer Notification Date : AUG 09, 2022 – AUG 17, 2022 Planned Owner Notification Date : SEP 09, 2022 – OCT 01, 2022 * NR – Not Reported

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 22V-564 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : Delco Trailers LLC Submission Date : AUG 02, 2022 NHTSA Recall No. : 22V-564 Manufacturer Recall No. : NR Manufacturer Information : Manufacturer Name : Delco Trailers LLC Address : 4131 County Road 35500 Sumner TX 75486 Company phone : 739-9400 Population : Number of potentially involved : 1,209 Estimated percentage with defect : 1 % Vehicle Information : Vehicle 1 : 2021-2022 Delco Trailers C-Series Vehicle Type : TRAILERS Body Style : OTHER Power Train : NR Descriptive Information : Delco determined the population based on production and shipment dates from its supplier Besser Pro, LLC. According to Besser Pro, axles were produced with improper weld settings. Delco’s records indicate it shipped 612 C-Series trailers. Production Dates : OCT 12, 2021 – MAR 31, 2022 VIN Range 1 : Begin : 5WWBC1223N6021247 End : 5WWBC2029N6020144 Not sequential Vehicle 2 : 2021-2022 Delco Trailers D-Series Vehicle Type : TRAILERS Body Style : OTHER Power Train : NR Descriptive Information : Delco determined the population based on production and shipment dates from its supplier Besser Pro, LLC. According to Besser Pro, axles were produced with improper weld settings. Delco’s records indicate it shipped 466 D-Series trailers. Production Dates : NOV 01, 2021 – MAR 31, 2022 VIN Range 1 : Begin : 5WWBC1223N6021247 End : 5WWBC2029N6020144 ✔ Not sequential Part 573 Safety Recall Report 22V-564 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Vehicle 3 : 2021-2022 Delco Trailers F-Series Vehicle Type : TRAILERS Body Style : OTHER Power Train : NR Descriptive Information : Delco determined the population based on production and shipment dates from its supplier Besser Pro, LLC. According to Besser Pro, axles were produced with improper weld settings. Delco’s records indicate it shipped 131 F-Series trailers. Production Dates : OCT 15, 2021 – MAR 31, 2022 VIN Range 1 : Begin : 5WWBC1223N6021247 End : 5WWBC2029N6020144 ✔ Not sequential Description of Defect : Description of the Defect : Besser Pro, LLC, the axle supplier, notified Delco of a safety-related defect. According to Besser Pro, due to a manufacturing error, the weld joining the spindle to the main beam of axle may not be properly placed, which could result in improper weld penetration or in an otherwise deficient weld. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : The potential deficient weld could fail when stressed by a heavy load or hard impact. A weld failure could result in cracking of axle or separation of spindle, which increases the risk of a crash. Description of the Cause : According to Besser Pro, minute misalignment of the welding head of its autowelding machine resulted in the weld not being placed in the center of the joint. This resulted in unequal weld penetration on the joined components. Identification of Any Warning that can Occur : Upon examination of spindle welds, any evidence of cracking means the axle likely has been overstressed and could break under further pressure. Involved Components : Component Name 1 : 7,000 lb. Axle Component Description : Axle Component Part Number : TS70950800865CETC Component Name 2 : 7,000 lb. Axle Component Description : Axle Component Part Number : TS70950770865CETC Part 573 Safety Recall Report 22V-564 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 Component Name 3 : 7,000 lb. Axle Component Description : Axle Component Part Number : TS70720565865CITC Component Name 4 : 7,000 lb. Axle Component Description : Axle Component Part Number : TS70730580865CETC Component Name 5 : 7,000 lb. Axle Component Description : Axle Component Part Number : TS70740580865CETC Component Name 6 : 7,000 lb. Axle Component Description : Axle Component Part Number : TS70740580865CITC Supplier Identification : Component Manufacturer Name : Besser Pro, LLC Address : 1500 30th St NW Paris Texas 75460 Country : United States Chronology : Jul 5, 2022: Delco learned of an accident involving a trailer that was equipped with a Besser Pro axle. Jul. 5-11, 2022: Delco notified the supplier of the alleged accident. Delco reviewed warranty and complaint information. Jul. 21, 2022: Besser Pro notified Delco that it had determined that a welding issue resulted in a defect. Besser Pro also notified Delco that it had submitted a defect information report to NHTSA related to the welding issue on the axles. Jul. 21-25, 2022: Delco investigated trailers equipped with the defective axles. Jul. 26, 2022: Based on the defect notice from Besser Pro, Delco determined that a population of trailers Part 573 Safety Recall Report 22V-564 Page 4 The information contained in this report was submitted pursuant to 49 CFR §573 contained a safety-related defect. Description of Remedy : Description of Remedy Program : Delco will notify customers who purchased potentially affected trailers and inspect the axles for suspect serial numbers (provided by Besser). For trailers equipped with suspect axles, Delco will replace the axles with properly welded axles, free of charge. The affected trailer population remains under warranty and, accordingly, the trailers are exempt from the reimbursement requirements. How Remedy Component Differs from Recalled Component : Remedy components will be manufactured with a properly calibrated and aligned welding machine. The part number for the replacement axles will remain the same. Identify How/When Recall Condition was Corrected in Production : According to Besser Pro, the weld settings on its auto-weld machine were recalibrated on Oct. 25, 2021. The welding head was adjusted to correct the position and to ensure equal weld penetration on both components being joined. Recall Schedule : Description of Recall Schedule : Delco plans to begin notifying consumers and dealers of this condition on the following dates. Planned Dealer Notification Date : AUG 08, 2022 – AUG 10, 2022 Planned Owner Notification Date : AUG 31, 2022 – AUG 31, 2022 * NR – Not Reported

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 22V-564 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : Delco Trailers LLC Submission Date : AUG 24, 2022 NHTSA Recall No. : 22V-564 Manufacturer Recall No. : NR Manufacturer Information : Manufacturer Name : Delco Trailers LLC Address : 4131 County Road 35500 Sumner TX 75486 Company phone : 739-9400 Population : Number of potentially involved : 1,209 Estimated percentage with defect : 1 % Vehicle Information : Vehicle 1 : 2021-2022 Delco Trailers C-Series Vehicle Type : TRAILERS Body Style : OTHER Power Train : NR Descriptive Information : Delco determined the population based on production and shipment dates from its supplier Besser Pro, LLC. According to Besser Pro, axles were produced with improper weld settings. Delco’s records indicate it shipped 612 C-Series trailers. Production Dates : OCT 12, 2021 – MAR 31, 2022 VIN Range 1 : Begin : 5WWBC1223N6021247 End : 5WWBC2029N6020144 Not sequential Vehicle 2 : 2021-2022 Delco Trailers D-Series Vehicle Type : TRAILERS Body Style : OTHER Power Train : NR Descriptive Information : Delco determined the population based on production and shipment dates from its supplier Besser Pro, LLC. According to Besser Pro, axles were produced with improper weld settings. Delco’s records indicate it shipped 466 D-Series trailers. Production Dates : NOV 01, 2021 – MAR 31, 2022 VIN Range 1 : Begin : 5WWBC1223N6021247 End : 5WWBC2029N6020144 ✔ Not sequential Part 573 Safety Recall Report 22V-564 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Vehicle 3 : 2021-2022 Delco Trailers F-Series Vehicle Type : TRAILERS Body Style : OTHER Power Train : NR Descriptive Information : Delco determined the population based on production and shipment dates from its supplier Besser Pro, LLC. According to Besser Pro, axles were produced with improper weld settings. Delco’s records indicate it shipped 131 F-Series trailers. Production Dates : OCT 15, 2021 – MAR 31, 2022 VIN Range 1 : Begin : 5WWBC1223N6021247 End : 5WWBC2029N6020144 ✔ Not sequential Description of Defect : Description of the Defect : Besser Pro, LLC, the axle supplier, notified Delco of a safety-related defect. According to Besser Pro, due to a manufacturing error, the weld joining the spindle to the main beam of axle may not be properly placed, which could result in improper weld penetration or in an otherwise deficient weld. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : The potential deficient weld could fail when stressed by a heavy load or hard impact. A weld failure could result in cracking of axle or separation of spindle, which increases the risk of a crash. Description of the Cause : According to Besser Pro, minute misalignment of the welding head of its autowelding machine resulted in the weld not being placed in the center of the joint. This resulted in unequal weld penetration on the joined components. Identification of Any Warning that can Occur : Upon examination of spindle welds, any evidence of cracking means the axle likely has been overstressed and could break under further pressure. Involved Components : Component Name 1 : 7,000 lb. Axle Component Description : Axle Component Part Number : TS70950800865CETC Component Name 2 : 7,000 lb. Axle Component Description : Axle Component Part Number : TS70950770865CETC Part 573 Safety Recall Report 22V-564 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 Component Name 3 : 7,000 lb. Axle Component Description : Axle Component Part Number : TS70720565865CITC Component Name 4 : 7,000 lb. Axle Component Description : Axle Component Part Number : TS70730580865CETC Component Name 5 : 7,000 lb. Axle Component Description : Axle Component Part Number : TS70740580865CETC Component Name 6 : 7,000 lb. Axle Component Description : Axle Component Part Number : TS70740580865CITC Supplier Identification : Component Manufacturer Name : Besser Pro, LLC Address : 1500 30th St NW Paris Texas 75460 Country : United States Chronology : Jul 5, 2022: Delco learned of an accident involving a trailer that was equipped with a Besser Pro axle. Jul. 5-11, 2022: Delco notified the supplier of the alleged accident. Delco reviewed warranty and complaint information. Jul. 21, 2022: Besser Pro notified Delco that it had determined that a welding issue resulted in a defect. Besser Pro also notified Delco that it had submitted a defect information report to NHTSA related to the welding issue on the axles. Jul. 21-25, 2022: Delco investigated trailers equipped with the defective axles. Jul. 26, 2022: Based on the defect notice from Besser Pro, Delco determined that a population of trailers Part 573 Safety Recall Report 22V-564 Page 4 The information contained in this report was submitted pursuant to 49 CFR §573 contained a safety-related defect. Description of Remedy : Description of Remedy Program : Delco will notify customers who purchased potentially affected trailers and inspect the axles for suspect serial numbers (provided by Besser). For trailers equipped with suspect axles, Delco will replace the axles with properly welded axles, free of charge. The affected trailer population remains under warranty and, accordingly, the trailers are exempt from the reimbursement requirements. How Remedy Component Differs from Recalled Component : Remedy components will be manufactured with a properly calibrated and aligned welding machine. The part number for the replacement axles will remain the same. Identify How/When Recall Condition was Corrected in Production : According to Besser Pro, the weld settings on its auto-weld machine were recalibrated on Oct. 25, 2021. The welding head was adjusted to correct the position and to ensure equal weld penetration on both components being joined. Recall Schedule : Description of Recall Schedule : Delco plans to begin notifying consumers and dealers of this condition on the following dates. Planned Dealer Notification Date : AUG 09, 2022 – AUG 17, 2022 Planned Owner Notification Date : AUG 31, 2022 – AUG 31, 2022 * NR – Not Reported

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