Bilstein Spring Black Powder Coat Finish - 36-154159 rear New T87 TCM that is

New T87 TCM that is unlocked and has a custom ATS calibration pre-installed that optimizes the performance of the Allison transmission

Does not fit Chassis Cabs

this kit comes with everything you need to install with ease without cutting or trimming

and capability of your 2007–2013 Chevy Silverado 1500 or GMC Sierra 1500 4WD with the Zone Offroad 3

Bilstein Spring Black Powder Coat Finish - 36-154159 rear New T87 TCM that isFeatures & Benefits Innovative technical designs including pigtail ends, minibloc shapes and central force design High quality chrome vanadium or chrome silicon steel for superior break resistance Hot setting after forming effectively prevents height loss Bilstein B3 OE Replacement coil springs are designed to replace your vehicle's original springs. These coil springs are manufactured to meet all the OE dimensions, spring rates, and design types