GDP 2020-2023 6.6L Duramax Custom Transmission Tuning Package STEERING KITS 1999-2007 Chevrolet/GMC 1500 Works great with stock applications

Works great with stock applications

Includes our exclusive smart Trim/Clutch Control valve assemblies for increased durability

BD's 68RFE is the industry leading transmission

The Mahle Upper Engine Gasket Set includes all the seals and gaskets for the Top end of your 6

spring loaded clamps and flange gasket

GDP 2020-2023 6.6L Duramax Custom Transmission Tuning Package STEERING KITS 1999-2007 Chevrolet/GMC 1500 Works great with stock applicationsGDP 2020 2023 6. 6L Duramax Custom Transmission Tuning Package Package Includes: HP Tuners Unlocked T87 TCM HP Tuners MPVI3 (Optional) 4 HP Tuners Tuning Credits (Optional) GDP Transmission Tune Note An HP Tuners MPVI3 & 4 Tuning credits are required to load the transmission tune into the vehicle