Re: 3/4 ton 1964 rear gear ratios?
Thats an Eaton HO 52 3/4 ton or single wheel one ton. It probably has 4.56 gears. Way stronger than a dana 60. Look for a 4.10 carrier out of a 67-72 chevy if you want friendlier gears. Also GMC put lots of power lock limited slips in the dana axles.And most of them seem to be 4.10 ratio in the d-60. This carrier works with the 3.54. Look for the Oil tag on the cover.
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