- Fits 71-96 FS Chevy Impala, 70-81 Camaro, 70-78 Chevelle, 70-79 Nova, 71-77 El Camino, 71-77 Cutlass, Grand Prix, 70-81 Firebird, 84-87 Grand National, 72-81 Z28

- 11" 10 holes irregular & 10-5/8" 10 holes irregular covers

- 8.50" diameter ring gear

- 10 7/16" x 20 LH threaded holes

- 1.625” diameter, 30 spline pinion

- 2.56 & numerically lower, 2.73 & numerically higher differentials

 Features: - Made of 8620 or equivalent material

- CNC machined process from start to finish

- Gleason 5 cut technology, 3 cut ring gear and 2 cut pinion process for a central contact pattern

- Heat treatment process 1.0mm 1.2mm in depth

- Solid shank pinion shaft

MINI SPOOL #31020, INSTALLATION KIT #30100 SOLD SEPERATELY