1973-87 Truck: Use Installation Kit #836-83-1021-M or #836-83-1021-TE
Does not work with pinion-mounted ABS sensor in 1990-96 Impala/Impala SS/Caprice
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Description
Ring and Pinion, 4.88 Ratio, 30 Spline Pinion, 3 Series, 8.5 in / 8.625 in, GM 10-Bolt, Kit