I have just finished with the install of a Borg Warner T5, 5 speed tranny and swapped out the 4.56 third member with a 4.11 pumpkin from a 1965 chev 3/4 ton, all set up in my 1946 Chevy 3/4 ton. Aside from the vibration, or maybe some noise, the set up is more than I expected. I wanted to get 60-65 MPH for highway use , drove it last night using a hend held GPS to monitor my speed. I back off when I reached 70.1 MPH, don't have a tac yet but I wasn't fully cranked out, I'ld guess somewhere around 3 - 3.5 grand. Those old heavy , hard to stop , trucks were not intendedto go that fast. I'm pushing this rig with a 261 inline 6. If anyone is considering making one or both of these changes I'll testify that it really makes a difference. I've more than put life back in this old truck, its a new truck!!!
