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Many techs find that once the plastic retainer is removed from the original equipment cam on GM trucks, the adjustment won't hold. These lock plates are designed to provide a mechanical lock for the cam bolt to the guide pin. Simply dial in the adjustment change with the original equipment cam or SPC's replacement kit #86376 and then replace the nut side cam with the lock plate. Use part number 86326 HD GM alignment pins to replace the often abused OE pins. This kit is designed for GM 2500/3500/4500 HD trucks (Upper Arm Adjustment) and the 2015 & up Chevy Colorado (Lower Arm Adjustment).
Installation InstructionsThis Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2015-2020 | Chevrolet | Colorado | Base |
| 2015-2022 | Chevrolet | Colorado | LT |
| 2015-2022 | Chevrolet | Colorado | WT |
| 2015-2022 | Chevrolet | Colorado | Z71 |
| 2017-2022 | Chevrolet | Colorado | ZR2 |
| 2020 | Chevrolet | Silverado 2500 HD | Custom |
| 2015-2020 | Chevrolet | Silverado 2500 HD | High Country |
| 2011-2020 | Chevrolet | Silverado 2500 HD | LT |
| 2011-2020 | Chevrolet | Silverado 2500 HD | LTZ |
| 2011-2020 | Chevrolet | Silverado 2500 HD | WT |
| 2015-2020 | Chevrolet | Silverado 3500 HD | High Country |
| 2011-2020 | Chevrolet | Silverado 3500 HD | LT |
| 2011-2020 | Chevrolet | Silverado 3500 HD | LTZ |
| 2011-2020 | Chevrolet | Silverado 3500 HD | WT |
| 2018-2020 | GMC | Canyon | All Terrain |
| 2021-2022 | GMC | Canyon | AT4 |
| 2015-2020 | GMC | Canyon | Base |
| 2017-2022 | GMC | Canyon | Denali |
| 2021-2022 | GMC | Canyon | Elevation |
| 2021-2022 | GMC | Canyon | Elevation Standard |
| 2015-2020 | GMC | Canyon | SL |
| 2015-2020 | GMC | Canyon | SLE |
| 2015-2020 | GMC | Canyon | SLT |
| 2020 | GMC | Sierra 2500 HD | AT4 |
| 2015-2020 | GMC | Sierra 2500 HD | Base |
| 2011-2020 | GMC | Sierra 2500 HD | Denali |
| 2011-2020 | GMC | Sierra 2500 HD | SLE |
| 2011-2020 | GMC | Sierra 2500 HD | SLT |
| 2011-2014 | GMC | Sierra 2500 HD | WT |
| 2020 | GMC | Sierra 3500 HD | AT4 |
| 2015-2020 | GMC | Sierra 3500 HD | Base |
| 2011-2020 | GMC | Sierra 3500 HD | Denali |
| 2011-2020 | GMC | Sierra 3500 HD | SLE |
| 2011-2020 | GMC | Sierra 3500 HD | SLT |
| 2011-2014 | GMC | Sierra 3500 HD | WT |
1. Returns
No Refunds/Exchanges:
We do not accept returns or exchanges unless the item you purchased is defective. If you receive a defective item, please contact us at [•] with details of the product and the defect. You can send the item you consider defective to:
Upon receipt of the returned product, we will fully examine it and notify you via e-mail, within a reasonable period of time, whether you are entitled to a refund or a replacement as a result of the defect. If you are entitled to a replacement or refund, we will replace the product or refund the purchase price, using the original method of payment.
2. Shipping
To return the item you purchased, please mail it to:
Refunds do not include any shipping and handling charges shown on the packaging slip or invoice. Shipping charges for all returns must be prepaid and insured by you. You are responsible for any loss or damage to hardware during shipment. We do not guarantee that we will receive your returned item. Shipping and handling charges are not refundable. Any amounts refunded will not include the cost of shipping.





















