Originally Posted by Grigg
Use this site to figure speeds and ratios to get what you want
http://www.onlineconversion.com/bigger_tires.htm I like the last one on the page

Originally Posted by lazy j
The rearend I have to swap in I beleive is a 3.27 ratio but I honestly didn't think that would make that big of a difference considering how slow it runs now.

And What did you find?

To me it looks like you can switch rear axles and leave the transmission alone, this gives you approximately 65 mph at 2500 rpm.

Grigg

•1951 GMC 250 in the Project Journals
•1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
•1952 Chevrolet 3800 pickup
---All pictures---
"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-