B&M Transpak - GM TH350C (Lockup) GM 5L Ecoboost and the NA

5L Ecoboost and the NA 3

If you have an aftermarket fuel filtration system such as an Air Dog® or a FASS® and dual CP3 pumps

Grab yours today and stay cozy while representing the S&M Diesel brand

Our bulkhead kit allows for a larger volume of diesel fuel to be retrieved by the fuel System and will offer a convenient return option

B&M Transpak - GM TH350C (Lockup) GM 5L Ecoboost and the NAThe B&M Transpak is the next step up from the B&M Shift Improver kit. It has all the features in the Shift Improver kit, plus it provides additional driver manual control (GM TH 400, 350, Ford C 6 and Chrysler Torqueflite only). B&M Transpak kit for 1980 1986 GM TH350C (Lockup) automatic transmissions. Most stock automatic transmissions won't downshift into low gear above 15 mph, and automatically upshift at a predetermined speed no matter what gear