Availability
Gear, Ring and Pinion, EXCel, 3.73:1 Ratio, GM, 8.875 in., 12-Bolt Car, Set
Part Number: RMG-12BC373T
Gear, Ring and Pinion, 5.14:1 Ratio, GM, 12-Bolt Car, 4 Series, Set
Part Number: RMG-79-0027-1
Estimated Ship Date: Today
Estimated Ship Date: Today
Spool, Mini, Steel, 30-Spline, 12-Bolt, GM 8.875 in., Each
Part Number: MGR-MS12C
Estimated Ship Date: Today
Estimated Ship Date: Today
Differential Shims, Pinion Shim Type, Steel, Set
Part Number: MGR-1100
Estimated Ship Date: Today
Estimated Ship Date: Today
Cross Pin, GM, 10-Bolt, 8.5 in. Each
Part Number: MGR-14006401
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Differential Pinion Bearing Kit, GM 8.875 in. Car, Timken Bearings, Chevy, GMC, Kit
Part Number: MGR-R12CRTPK
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Need It Sooner? We recommend these similar substitute parts:
Estimated Ship Date: Today
Differential Carrier Bearing, Races Included, Koyo Bearing, Steel, Set
Part Number: MGR-706016XR
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Pinion Bearing, Rear, 1.875 in. i.d., Buick, Cadillac, Chevy, Chrysler, Dodge, Plymouth, Mitsubishi, Each
Part Number: TMK-M804049
Estimated Ship Date: Today
Estimated Ship Date: Today
Gear, Ring and Pinion, 5.13:1 Ratio, GM, 8.5/8.6 in., Set
Part Number: MGR-G885513
Estimated Ship Date: Today
Estimated Ship Date: Today
Ring and Pinion Installation Kit, Super Kit, GM, 8.875 in., Kit
Part Number: MGR-R12CRSKT
Estimated Ship Date: Today
Estimated Ship Date: Today
Differential Carrier Bearings, Standard Replacement, Includes Cup, 1.625 in. Bore, AMC, GM, Mopar, Jeep, International, Studebaker, Hummer, Each
Part Number: TMK-SET69
Estimated Ship Date: Today
Estimated Ship Date: Today
Gear, Ring and Pinion, 5.14:1 Ratio, GM, 12-Bolt Car, 4 Series, Set
Part Number: RMG-6900341
Estimated Ship Date: Tomorrow if ordered today
Estimated Ship Date: Tomorrow if ordered today
Differential Crush Sleeve; Fits GM 8.5 in.
Part Number: RMG-19-0004-1
Estimated Ship Date: Today
Estimated Ship Date: Today
Gear, Ring and Pinion, 4.30:1 Ratio, GM, 8.5/8.6 in., 10-Bolt, Set
Part Number: MGR-GM10-430
Estimated Ship Date: Today
Estimated Ship Date: Today
Gear, Ring and Pinion, EXCel, 4.10:1 Ratio, GM, 8.875 in., 12-Bolt Car, Set
Part Number: RMG-12BC410T
Not Yet Reviewed
Estimated Ship Date: Dec 29, 2025 if ordered today
Estimated Ship Date: Dec 29, 2025 if ordered today
Bearing, Pinion, 1.312 in. Inside Diameter, Each
Part Number: NTL-M88048
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Gear, Ring and Pinion, 4.56:1 Ratio, GM, 12-Bolt Car, 3 Series, Set
Part Number: RMG-6903061
Estimated Ship Date: Today
Estimated Ship Date: Today
Replcement Springs, Powertrax No-Slip, Kit
Part Number: PWT-8001001KAV
Estimated Ship Date: Today
Estimated Ship Date: Today
Spool, Mini, Steel, 30-Spline, 12-Bolt, GM 8.875 in., Each
Part Number: RMG-78-1230-1
Not Yet Reviewed
Estimated Ship Date: Dec 29, 2025 if ordered today
Estimated Ship Date: Dec 29, 2025 if ordered today
Crate Axle, 64-66 GM A-Body Centurion 9-Inch, Black PC, 31-Spline, 3.70 Ratio, Helical Limited Slip, 11" Explorer Disc
Part Number: CUR-CR-GA137TEBB
Not Yet Reviewed
Estimated Ship Date: Jan 5, 2026 if ordered today
Estimated Ship Date: Jan 5, 2026 if ordered today
Crate Axle, 68-72 GM A-Body Centurion 9-Inch, Black PC, 31-Spline, 3.70 Ratio, Helical Limited Slip, Wilwood 11" Dynapro Black Calipers
Part Number: CUR-CR-GA237TWAB
Not Yet Reviewed
Estimated Ship Date: Dec 30, 2025 if ordered today
Estimated Ship Date: Dec 30, 2025 if ordered today
Crate Axle, 64-66 GM A-Body Centurion 9-Inch, Black PC, 31-Spline, 3.50 Ratio, Helical Limited Slip, Wilwood 11" Dynapro Black Calipers
Part Number: CUR-CR-GA135TWAB
Not Yet Reviewed
Estimated Ship Date: Dec 30, 2025 if ordered today
Estimated Ship Date: Dec 30, 2025 if ordered today
Crate Axle, 64-66 GM A-Body Centurion 9-Inch, Black PC, 31-Spline, 4.11 Ratio, Helical Limited Slip, 11" Explorer Disc
Part Number: CUR-CR-GA141TEBB
Not Yet Reviewed
Estimated Ship Date: Dec 30, 2025 if ordered today
Estimated Ship Date: Dec 30, 2025 if ordered today
Modal Header
Call To Order
This is a custom order part. You can order this part by Contacting Us.