Availability
Differential Carrier Rebuild Kits and Spider Gears, Spider Gear Sets, GM 8.875 in. (12-bolt), Car/Truck, 30-spline, Buick, Chevy, GMC, Pontiac, Kit
Part Number: SPZ-39021
Estimated Ship Date: Monday 10/27/2025
Estimated Ship Date: Monday 10/27/2025
Differential Carrier Rebuild Kits and Spider Gears, GM 8.875 in. (12-bolt) Car/Truck, Side Gears, Rear, Limited Slip, Eaton, Posi, 30-spline, Kit
Part Number: SVL-2023882
Estimated Ship Date: Monday 10/27/2025
Estimated Ship Date: Monday 10/27/2025
Ring and Pinion Installation Kit, GM, 8.5 in., 10-Bolt, Kit
Part Number: RMG-831021M
Estimated Ship Date: Monday 10/27/2025
Estimated Ship Date: Monday 10/27/2025
Ring and Pinion Gears, 3.23:1 Ratio, GM 8.5 in., Set
Part Number: SVL-2023698
Not Yet Reviewed
Estimated Ship Date: Monday 10/27/2025
Estimated Ship Date: Monday 10/27/2025
Ring and Pinion Installation Kit, Master Kit, GM, 8.5 in., Kit
Part Number: MGR-R10REMK
Estimated Ship Date: Monday 10/27/2025
Estimated Ship Date: Monday 10/27/2025
Gear, Ring and Pinion, 3.70:1 Ratio, GM, 8.2 in., Set
Part Number: MGR-G884370
Estimated Ship Date: Monday 10/27/2025
Estimated Ship Date: Monday 10/27/2025
Ring and Pinion Installation Kit, 12-bolt, 30-spline, Rear, GM 8.875 in. Passenger Car, Kit
Part Number: MGR-R12CRMK
Estimated Ship Date: Monday 10/27/2025
Estimated Ship Date: Monday 10/27/2025
Ring and Pinion Installation Kit, Master Kit, GM, 8.2 in. (Drop Out), Kit
Part Number: MGR-R84RMKT
Estimated Ship Date: Monday 10/27/2025
Estimated Ship Date: Monday 10/27/2025
Differential Parts Kit; Open Differential; Includes 28-Spline Side And Pinion Gears/Washers/Pinion Shaft /Bolt
Part Number: MGR-GM10-BI
Estimated Ship Date: Monday 10/27/2025
Estimated Ship Date: Monday 10/27/2025
Differential Ring and Pinion; GM 8.5 10 Bolt - 3.73 Ratio
Part Number: SVL-2023695
Estimated Ship Date: Monday 10/27/2025
Estimated Ship Date: Monday 10/27/2025
Spider Gear Kit, Open Differential, GM 8.2 in., 17 Spline, Kit
Part Number: YGA-16046
Estimated Ship Date: Monday 10/27/2025
Estimated Ship Date: Monday 10/27/2025
Gear, Ring and Pinion, EXCel, 3.55:1 Ratio, GM, 8.875 in., 12-Bolt Car, Set
Part Number: RMG-12BC355
Estimated Ship Date: Monday 10/27/2025
Estimated Ship Date: Monday 10/27/2025
Ring and Pinion Installation Kit, Master, GM 8.2 in., Rear, Kit
Part Number: MGR-R10CRMK
Estimated Ship Date: Monday 10/27/2025
Estimated Ship Date: Monday 10/27/2025
USA Standard Master Overhaul kit GM 8.5 in., Rear, Kit
Part Number: SPZ-37057
Estimated Ship Date: Monday 10/27/2025
Estimated Ship Date: Monday 10/27/2025
Ring and Pinion Installation Kit, GM 55P/55T, Rear, Kit
Part Number: SPZ-37047
Estimated Ship Date: Monday 10/27/2025
Estimated Ship Date: Monday 10/27/2025
Ring and Pinion Gears, GM 8.2 in., 3.55:1 Ratio, 25-spline, Standard Rotation, GM 8.2 in., Set
Part Number: SVL-10004620
Estimated Ship Date: Monday 10/27/2025
Estimated Ship Date: Monday 10/27/2025
Differential Carrier Rebuild Kits and Spider Gears, GM 8.2 in., Side Gears, Rear, Open, 28-spline, 10-bolt, Chevy, Kit
Part Number: SPZ-39025
Estimated Ship Date: Monday 10/27/2025
Estimated Ship Date: Monday 10/27/2025
Spider Gears, Open, Front or Rear, Internal Kit, Side Gears, Cross Pin and Bolt, GM, 8.5 in., 28 Spline, Kit
Part Number: YGA-16054
Estimated Ship Date: Monday 10/27/2025
Estimated Ship Date: Monday 10/27/2025
Spool, Full Size, Steel, 28-Spline, 10-Bolt, GM 8.5 in., Each
Part Number: MGR-FS10-28
Estimated Ship Date: Monday 10/27/2025
Estimated Ship Date: Monday 10/27/2025
Spider Gear Kit, Open Differential, GM 8.875 in., 30 Spline, Kit
Part Number: YGA-16043
Estimated Ship Date: Monday 10/27/2025
Estimated Ship Date: Monday 10/27/2025
Mini Spool, Steel, 28-Spline, GM 8.5 in., Each
Part Number: MGR-MS10-28
Estimated Ship Date: Monday 10/27/2025
Estimated Ship Date: Monday 10/27/2025
Ring and Pinion Installation Kit, Super Kit, GM, 8.875 in., Kit
Part Number: MGR-R12CRSKT
Estimated Ship Date: Nov 14, 2025 if ordered today
Estimated Ship Date: Nov 14, 2025 if ordered today
Performance Mini Spool (GM 8.5 - 30 Spline)
Part Number: SDH-10015388
Not Yet Reviewed
Estimated Ship Date: Monday 10/27/2025
Estimated Ship Date: Monday 10/27/2025
USA Standard Master Overhaul kit for the GM 12P differential
Part Number: SPZ-37042
Not Yet Reviewed
Estimated Ship Date: Monday 10/27/2025
Estimated Ship Date: Monday 10/27/2025
Ring and Pinion Installation Kit, GM 8.5 in., Rear, Kit
Part Number: SPZ-37055
Estimated Ship Date: Monday 10/27/2025
Estimated Ship Date: Monday 10/27/2025
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