My history with this type of set up went like this. I had a 216 with a stock three speed behind it in my 37 pick-up. I changed the 4:11 out to a 49-54 car 3:54 rear axle. Next I rebuilt the stock transmission with all new 54-55 gears. It helped allot and put me on the freeway at 55 to 65 mph with out too much trouble. I then put in a 55 front truck axle, totally rebuilt with modern tie rod ends on the tie rod and the drag link. Steered great! Then I went with a 56 261. Even better! Next I moved up to a T-5, a 55 Chev car 3:54 rear axle (open drive line), five lugs all the way around and a dual master cylinder. Now I'm in a nice spot. I can cruise (and stop) on the freeways or around the neighborhood with no problems! And the truck looks stock!
