Availability
Full Size Spool, GM 8.5 in. 10 Bolt, 33 Spline, C-Clip Elim.Req'd., Steel
Part Number: RMG-81-1033-1
Not Yet Reviewed
Estimated Ship Date: Oct 17, 2025 if ordered today
Estimated Ship Date: Oct 17, 2025 if ordered today
Spacer, Replacement, Active Spacer, Each
Part Number: PWT-624004SDG2
Not Yet Reviewed
Estimated Ship Date: Oct 21, 2025 if ordered today
Estimated Ship Date: Oct 21, 2025 if ordered today
Spool, Full Size, Steel, 30-Spline, 10-Bolt, GM 8.5 in., Each
Part Number: RMG-81-1030-1
Not Yet Reviewed
Estimated Ship Date: Oct 17, 2025 if ordered today
Estimated Ship Date: Oct 17, 2025 if ordered today
Differential, Grip LS Traction System, 30-Spline, GM, 8.875 in., 4 Series Carrier, Each
Part Number: PWT-LS241230
Not Yet Reviewed
Estimated Ship Date: Monday 9/29/2025
Estimated Ship Date: Monday 9/29/2025
Differential Cover Bolt, Steel, Black, Hex Head, 0.500 in. Wrench Size, Dana 25, 27, 30, 44, Model 35, GM 7.5 in., GM 8.2 in., Each
Part Number: YGA-33286
Not Yet Reviewed
Estimated Ship Date: Monday 9/29/2025
Estimated Ship Date: Monday 9/29/2025
USA Standard Gear standard spider gear set for GM 8.5", 30 spline
Part Number: SPZ-39027
Not Yet Reviewed
Estimated Ship Date: Oct 14, 2025 if ordered today
Estimated Ship Date: Oct 14, 2025 if ordered today
Cross Shaft Pin, Mini Spool, GM, 8.5 in., 28-Spline, Each
Part Number: RMG-CSPGM85
Estimated Ship Date: Monday 9/29/2025
Estimated Ship Date: Monday 9/29/2025
Ring & Pinion set, 3.90:1 Ratio, GM "O" Axle, Set
Part Number: YGA-24688
Not Yet Reviewed
Estimated Ship Date: Oct 29, 2025 if ordered today
Estimated Ship Date: Oct 29, 2025 if ordered today
Differential Ring and Pinion, USA Standard Ring & Pinion set for 8.2" Buick, Olds & Pontiac, 3.55
Part Number: SPZ-36368
Not Yet Reviewed
Estimated Ship Date: Oct 13, 2025 if ordered today
Estimated Ship Date: Oct 13, 2025 if ordered today
Bolt, Ring Gear, 3/8-24, Right Hand Thread, Black Oxide, Each
Part Number: MGR-RGBT-003
Not Yet Reviewed
Estimated Ship Date: Monday 9/29/2025
Estimated Ship Date: Monday 9/29/2025
Clutch Guide, Dura Grip, Chrysler 9.25 in., GM 8.5 in., 8.6 in., 8.875 in., Each
Part Number: YGA-33352
Not Yet Reviewed
Estimated Ship Date: Monday 9/29/2025
Estimated Ship Date: Monday 9/29/2025
Gear, Ring and Pinion, 5.13:1 Ratio, GM, 8.5/8.6 in., Set
Part Number: MGR-G885513
Estimated Ship Date: Monday 9/29/2025
Estimated Ship Date: Monday 9/29/2025
Ring and Pinion Kit
Part Number: RMG-XL-1019-1
Not Yet Reviewed
Estimated Ship Date: Oct 20, 2025 if ordered today
Estimated Ship Date: Oct 20, 2025 if ordered today
Ring and Pinion Gear Installation Kit, Minimum Install, 27-spline, Standard Rotation, Rear, GM 8.5 in. O Axle, Kit
Part Number: YGA-12057
Not Yet Reviewed
Estimated Ship Date: Monday 9/29/2025
Estimated Ship Date: Monday 9/29/2025
WASHER PIN GR 12BLT 8 7/8
Part Number: MGR-3880141
Not Yet Reviewed
Estimated Ship Date: Monday 9/29/2025
Estimated Ship Date: Monday 9/29/2025
Ring and Pinion Installation Kit, Basic, GM 8.5 in., Front/Rear, Kit
Part Number: MGR-R10RTPK
Not Yet Reviewed
Estimated Ship Date: Oct 20, 2025 if ordered today
Estimated Ship Date: Oct 20, 2025 if ordered today
Differential Cover, 10-bolt, Steel, Natural, GM 8.2 in., GM 8.5 in., GM 8.6 in., Each
Part Number: YGA-32332
Estimated Ship Date: Monday 9/29/2025
Estimated Ship Date: Monday 9/29/2025
Differential Carrier Bearing, Steel, Each
Part Number: NTL-LM501349
Estimated Ship Date: Monday 9/29/2025
Estimated Ship Date: Monday 9/29/2025
Differential Clutch, Steel Pack, Dura-Grip, Eaton, 18-Plate, GM, 8.875 in., Set
Part Number: YGA-16110
Estimated Ship Date: Oct 29, 2025 if ordered today
Estimated Ship Date: Oct 29, 2025 if ordered today
Ring and Pinion Gear, 3.90:1 Ratio, GM, 8.5 in./8.6 in., Rear, Set
Part Number: SPZ-36215
Not Yet Reviewed
Estimated Ship Date: Oct 14, 2025 if ordered today
Estimated Ship Date: Oct 14, 2025 if ordered today
Ring and Pinion Gear, 3.08:1 Ratio, GM, 8.5 in./8.6 in., Rear, Set
Part Number: SPZ-36211
Not Yet Reviewed
Estimated Ship Date: Oct 14, 2025 if ordered today
Estimated Ship Date: Oct 14, 2025 if ordered today
Ring and Pinion Gear, 4.88:1 Ratio, GM, 8.5 in./8.6 in., Rear, Set
Part Number: SPZ-36219
Estimated Ship Date: Oct 14, 2025 if ordered today
Estimated Ship Date: Oct 14, 2025 if ordered today
Ring and Pinion Gear, 5.13:1 Ratio, GM, 8.5 in./8.6 in., Rear, Set
Part Number: SPZ-36220
Not Yet Reviewed
Estimated Ship Date: Oct 13, 2025 if ordered today
Estimated Ship Date: Oct 13, 2025 if ordered today
Ring & Pinion Gear, 5.38 Ratio, GM, 8.5 in./8.6 in., Set
Part Number: YGA-24494
Not Yet Reviewed
Estimated Ship Date: Oct 28, 2025 if ordered today
Estimated Ship Date: Oct 28, 2025 if ordered today
Gear, Ring and Pinion, 3.73:1 Ratio, GM 8.5/8.625 in., Set
Part Number: RNB-697-301
Not Yet Reviewed
Estimated Ship Date: Oct 16, 2025 if ordered today
Estimated Ship Date: Oct 16, 2025 if ordered today
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