Now i have thought about running the 5.9in my GMC with the 6 spd manual it would run 72mph@2750rpm witch is pushing both the engine and the brake's. . . :mad:

But i would most definatly go for the Cummins is about the best engine for that truck. . .

Do it i am. . .

Mike. . .


1962 GMC K3000, GMC-379 V6.