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How many splines are in my rear end? it is a 10 bolt non posi from a 1979 el camino with a 305. Im thinking i will need a 28 spline model. Im looking for a posi rear end to stuff in the housing.

Thanks.
 

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.... depends on whhat diameter your ring gear is, for instance i have a 8.2" ring gear, and i have 28 spline axles, gimme a sec i'll find out


EDIT: if you have a 7.5" rear, then you have 26 spline axles, if you have a 8.2/8.5" rear you have 28 splines

1976-1978 chevy used all 3 of those size rears, but i am 80% sure you have the 7.5"

BTW if its a 7.5" rear there is no reason to work it, its crap, but if its a 8.5 u can do w/e to it
 
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