Swapping 4.10 gears in the original axle is a simple and very worthwhile swap.
http://www.stovebolt.com/techtips/axles/1%20Ton%20Upgrade/

Even though you can push the truck as it is and go faster like Jerry says the faster gears will make it more fun to drive at speed and burn a little less fuel.

Another option is swap the entire rear axle out for the right 14 bolt rear axle which have a range of gear ratios and brake options. Several discussions on the forum, check the 1 ton section.

I've done the first and planning to do the second, both have advantages and can work well.


•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
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"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-