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- 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
- Coverage Incl. 70 To 81 Firebird Trans Am; 70 To 77 GTO; 25 Other Models; Or Anything Hot-Rodded w/A GM 8.5 in. Diff
- Includes positraction unit, ring and pinion gear set, and all required bearings and installation hardware
- Incl. Positraction Unit; Ring And Pinion Gear Set; And All Required Bearings And Installation Hardware
- Includes Dura Grip positraction LSD, 28 spline
- Incl. Dura Grip Positraction LSD; 28 Spline
- Fits GM 8.5 in. differential
- Fits GM 8.5” differential
- 30 spline pinion gear
- 2.25 in. OD Bearings
- 10 bolt ring gear
- 2.25" OD bearings
- 3.90 ratio