If you intend to keep the truck in a stock like appearance, why not do the ratio swap?

Tech Tip - Rear Pumpkin Swap

This allows you to keep the axle, no worries about bolt patterns, and will allow the driver to go as fast as they wish.......

It is simple once you find the correct pumpkin. Can do the entire job in 3 beers tops.

SWEET
Sergeant At Arms: Old Dominion Stovebolt Society
BUNS?!?!?!Where we're going, we don't need no buns.....
1950 GMC 450
1951 Chevy 1/2-Ton
The GreenMachine
In the Stovebolt Gallery