54 3/4 ton axle ? - Sun Aug 16 2020 09:46 PM
I am rebuilding the rear axle, HO52. It is in a 1955.1 - 3600.I found on the plate end of the axle GM 77 on the short shaft and GM 78 on the other shaft. Do these numbers represent a 1955 axle or do they refer to something else? Check out the attachment for details.