ADS Mesa 2.5 Series Rear Shocks 01-19 GM 2500HD/3500 FPE-34657-BLK-SPK also known as the Security

also known as the Security Gateway Module bypass cable is used to bypass the anti-tuning security found in the 2019+ Cummins PCM

The PSC XD shaft is fully updated and redesigned with a larger diameter sector shaft

Internal "Bump Zone" adds 20% more damping to prevent harsh bottom-outs

battery cables in your 1st gen Cummins can corrode and cause all sorts of issues

IMPORTANT NOTE: This Bumper is designed for Chevrolet 2500HD and 3500HD applications

ADS Mesa 2.5 Series Rear Shocks 01-19 GM 2500HD/3500 FPE-34657-BLK-SPK also known as the SecurityUpgrade your 2001 2019 GM 2500HD 3500's suspension with ADS Mesa 2. 5 Series Rear Shocks. These bolt on, OEM replacement shocks offer superior performance both on and off the road. Designed for maximum durability, they feature a ceramic powder coated steel body, black anodized billet aluminum components, and premium full synthetic shock oil. These high performance shock absorbers resist fade, enhance handling, and improve ride quality, making them