I believe the way you are checking it, you need to double it (because you are only spinning one wheel). That would be closer to a 4.11 gear set. It would be best as suggested to pop the rear cover off and look on the ring gear.


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

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