Description
Kit contains a ring and pinion set, positraction unit, and installation parts Includes Dura Grip positraction LSD, 28 spline Coverage includes ’70 to ’81 Firebird Trans Am, ’70 to ’77 GTO, 25 other models, or anything hot-rodded with a GM 8.5” diff Fits GM 8.5” differential 28 spline pinion gear 3.08 ratio
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