Re: Axle Years?
12 bolts were used up to 1981, thereafter it was 10 bolts for 1/2 tons. 14 bolt semi-float came in 1981....full float 14s in 1973. They are still using both 14 bolts to this day.
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Ken
'60 GMC 3/4T 4x4
'60 GMC Suburban 4x4
'64 GMC Suburban 4x4
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