.12" is less than 1/8 ". Even if the perches on the axles are off by the 1/8:, there should be that much play on the spring pack. If that is all they are off by, you should be able to just bolt it on.


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