Availability
Gear, Ring and Pinion, 3.73 Ratio, GM, 8.5 in/8.6 in., Set
Part Number: MGR-GM10-373
Estimated Ship Date: Today
Estimated Ship Date: Today
Ring and Pinion Installation Kit, Master Kit, GM 8.5 in., Kit
Part Number: MGR-R10RMK
Estimated Ship Date: Today
Estimated Ship Date: Today
Ring and Pinion Gears, 4.11:1 Ratio, 30-spline, Standard Rotation, GM 8.5 in., GM 8.6 in., Set
Part Number: MGR-GM10-411A
Estimated Ship Date: Today
Estimated Ship Date: Today
Ring and Pinion Gears, 3.42:1 Ratio, 30-spline, Standard Rotation, GM 8.5 in., GM 8.6 in., Set
Part Number: MGR-GM10-342A
Estimated Ship Date: Today
Estimated Ship Date: Today
Ring and Pinion Gears, 4.56:1 Ratio, 30-spline, Standard Rotation, GM 8.5 in., GM 8.6 in., Set
Part Number: MGR-GM10-456A
Estimated Ship Date: Today
Estimated Ship Date: Today
Ring and Pinion Installation Kit, Master Kit, GM, 8.5 in., Kit
Part Number: MGR-R10RMKT
Estimated Ship Date: Today
Estimated Ship Date: Today
Gear, Ring and Pinion, 3.73:1 Ratio, GM, 8.5/8.6 in., Set
Part Number: MGR-G885373
Estimated Ship Date: Today
Estimated Ship Date: Today
Ring and Pinion-GM 8.5/8.625
Part Number: MGR-GM10-373A
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Differential Parts Kit; Open Differential; Includes 28-Spline Side And Pinion Gears/Washers/Pinion Shaft /Bolt
Part Number: MGR-GM10-BI
Estimated Ship Date: Today
Estimated Ship Date: Today
Ring and Pinion-GM 8.5/8.625
Part Number: MGR-GM10-308A
Not Yet Reviewed
Estimated Ship Date: Feb 10, 2026 if ordered today
Estimated Ship Date: Feb 10, 2026 if ordered today
Ring and Pinion Installation Kit, Master Kit, GM, 8.5 in., 30-Spline Pinion, Kit
Part Number: MGR-R10REMKT
Estimated Ship Date: Today
Estimated Ship Date: Today
Yokes, GM 3RL/S44/Mechanics 3/American Axle 1344, 30-spline Inner, Cast Steel, for GM 8.5 in. or GM 9.5 in. Axle As the Pinion Yoke, Strap Style, Each
Part Number: MGR-MG3R-8500
Estimated Ship Date: Today
Estimated Ship Date: Today
Differential Parts Kit; Open Differential Internal Kit; Incl. Side And Pinion Gears/Washers/Pinion Shaft And L
Part Number: MGR-GM12BI
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Ring and Pinion Installation Kit, Master Kit, GM, 8.5 in., Kit
Part Number: MGR-R10REMK
Estimated Ship Date: Today
Estimated Ship Date: Today
Differential Parts Kit, Open Differential, Includes 30-spline Side and Pinion Gears/Washers/Pinion Shaft/Bolt
Part Number: MGR-GM-10BI-30
Estimated Ship Date: Today
Estimated Ship Date: Today
Spool, Full Size, Steel, 28-Spline, 10-Bolt, GM 8.5 in., Each
Part Number: MGR-FS10-28
Estimated Ship Date: Today
Estimated Ship Date: Today
Ring and Pinion Installation Kit, Basic, GM 8.5 in., Front/Rear, Kit
Part Number: MGR-R10RE
Not Yet Reviewed
Estimated Ship Date: Feb 10, 2026 if ordered today
Estimated Ship Date: Feb 10, 2026 if ordered today
Axle Shaft, OEM Replacement, Rear, C-clip, 1541H Alloy Steel, 28-spline Inner, 31.375 in. Length, GMC, Each
Part Number: MGR-14035542
Estimated Ship Date: Today
Estimated Ship Date: Today
Ring and Pinion Installation Kit, Super Kit GM, 8.5 in., Kit
Part Number: MGR-R10RASK
Not Yet Reviewed
Estimated Ship Date: Feb 10, 2026 if ordered today
Estimated Ship Date: Feb 10, 2026 if ordered today
Ring and Pinion Installation Kit, Super Kit, GM, 8.5 in., Kit
Part Number: MGR-R10RASKT
Not Yet Reviewed
Estimated Ship Date: Feb 10, 2026 if ordered today
Estimated Ship Date: Feb 10, 2026 if ordered today
Ring and Pinion Installation Kit, Basic, GM 8.5 in., Front/Rear, Kit
Part Number: MGR-R10RET
Estimated Ship Date: Feb 10, 2026 if ordered today
Estimated Ship Date: Feb 10, 2026 if ordered today
Ring and Pinion Installation Kit, Basic, GM 8.5 in., Front/Rear, Kit
Part Number: MGR-R10RT
Estimated Ship Date: Feb 10, 2026 if ordered today
Estimated Ship Date: Feb 10, 2026 if ordered today
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