wanting a 2-speed is plenty of reason to switch!

I think it also depends on year. Looking again, the 55.2-59 shows 2 ratios, 5.83/7.95 and 6.40/8.72 earlier probably uses a different rear.


Mike
1955 Chevy 6400 ex-flatbed (no bed now!) sold September 2023
In the Stovebolt Gallery
1958 Chevy 6400 flatbed W/dump
In the Stovebolt Gallery
1959 Chevy Suburban Owned for almost 20 years, Daily Driver -- sold May 2016
In the Stovebolt Gallery

Sufficient unto the day is the evil thereof