Availability
Crate Axle, 78-88 GM G-Body Centurion 9-Inch, Black PC, 31-Spline, 3.70 Ratio, Helical Limited Slip, 11" Explorer Disc
Part Number: CUR-CR-GG137TEBB
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
$35.00 Mail-In Rebate
Price after Manufacturer Rebate: $747.34
Rebate Expires: 12/31/2025
Differential, Grip LS Traction System, 28-Spline, GM, 8.5 in., Each
Part Number: PWT-LS201028
Not Yet Reviewed
Estimated Ship Date: Today
$35.00 Mail-In Rebate
Price after Manufacturer Rebate: $747.34
Rebate Expires: 12/31/2025
Estimated Ship Date: Today
Ring and Pinion Gears, 3.23:1 Ratio, 27-spline, Standard Ring Gear Rotation, GM 7.5 in., GM 7.625 in., Set
Part Number: SPZ-36194
Not Yet Reviewed
Estimated Ship Date: Dec 19, 2025 if ordered today
Estimated Ship Date: Dec 19, 2025 if ordered today
Ring and Pinion Kit
Part Number: RMG-GM75355TK
Not Yet Reviewed
Estimated Ship Date: Dec 22, 2025 if ordered today
Estimated Ship Date: Dec 22, 2025 if ordered today
Pinion Spacer and Shims, Steel, GM, 8.875 in., Passenger Car, Kit
Part Number: RMG-040012S
Estimated Ship Date: Today
Estimated Ship Date: Today
78-88 GM G-Body 9-Inch Crate, Black PC, 31-Spline Axle, 3.70 Ratio, Helical Worm Gear Differential, Brakes Not Included
Part Number: CUR-CR-GG137TNBB
Not Yet Reviewed
Estimated Ship Date: Dec 30, 2025 if ordered today
Estimated Ship Date: Dec 30, 2025 if ordered today
68-72 GM A-Body 9-Inch Crate, Black PC, 31-Spline Axle, 3.50 Ratio, Helical Worm Gear Differential, Brakes Not Included
Part Number: CUR-CR-GA235TNBB
Not Yet Reviewed
Estimated Ship Date: Dec 30, 2025 if ordered today
Estimated Ship Date: Dec 30, 2025 if ordered today
64-66 GM A-Body 9-Inch Crate, Black PC, 31-Spline Axle, 3.70 Ratio, Helical Worm Gear Differential, Brakes Not Included
Part Number: CUR-CR-GA137TNBB
Not Yet Reviewed
Estimated Ship Date: Dec 30, 2025 if ordered today
Estimated Ship Date: Dec 30, 2025 if ordered today
64-66 GM A-Body 9-Inch Crate, Black PC, 31-Spline Axle, 3.50 Ratio, Helical Worm Gear Differential, Brakes Not Included
Part Number: CUR-CR-GA135TNBB
Not Yet Reviewed
Estimated Ship Date: Dec 30, 2025 if ordered today
Estimated Ship Date: Dec 30, 2025 if ordered today
Estimated Ship Date: Today
Gear, Ring and Pinion, 3.42:1 Ratio, GM, 7.5 in./7.625 in., 10-Bolt, 2 Series, Set
Part Number: RMG-4900051
Estimated Ship Date: Today
Estimated Ship Date: Today
Ring and Pinion Gears,USA Standard 8.2" GM, 3.55 Ratio Rear Ring & Pinion GearInstall Kit 2.25" OD Axle Bearings & Seals
Part Number: SPZ-10665
Not Yet Reviewed
Estimated Ship Date: Dec 19, 2025 if ordered today
Estimated Ship Date: Dec 19, 2025 if ordered today
Ring and Pinion Gears, 3.73:1 Ratio, 27-spline, Standard Rotation, GM 7.5 in., GM 7.625 in., Set
Part Number: YGA-24480
Not Yet Reviewed
Estimated Ship Date: Jan 2, 2026 if ordered today
Estimated Ship Date: Jan 2, 2026 if ordered today
Ring and Pinion Installation Kit, Master Kit, GM 7.5 in., 7.625 in., Kit
Part Number: MGR-R75GRMKT
Estimated Ship Date: Today
Estimated Ship Date: Today
Crush Sleeve, Steel, GM 8.2 in. Drop-Out, Toyota 8 in. 4-Cylinder, Each
Part Number: YGA-33101
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
$40.00 Mail-In Rebate
Price after Manufacturer Rebate: $615.95
Rebate Expires: 12/31/2025
Differential, Grip Pro Traction System, 30-Spline, GM 8.875 in., 12-Bolt Car, Each
Part Number: PWT-GT231230
Not Yet Reviewed
Estimated Ship Date: Dec 23, 2025 if ordered today
$40.00 Mail-In Rebate
Price after Manufacturer Rebate: $615.95
Rebate Expires: 12/31/2025
Estimated Ship Date: Dec 23, 2025 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Estimated Ship Date: Today
Ring and Pinion Installation Kit, GM, 7.5 in./7.625 in., 10-Bolt, 1977-1981, 27-Spline Pinion, Kit
Part Number: RMG-8310161
Estimated Ship Date: Today
Estimated Ship Date: Today
$35.00 Mail-In Rebate
Price after Manufacturer Rebate: $605.99
Rebate Expires: 12/31/2025
Differential, Lock-Right, Locker, 26-Spline, GM, 7.625 in., Each
Part Number: PWT-1932-LR
Estimated Ship Date: Dec 22, 2025 if ordered today
$35.00 Mail-In Rebate
Price after Manufacturer Rebate: $605.99
Rebate Expires: 12/31/2025
Estimated Ship Date: Dec 22, 2025 if ordered today
USA Standard Ring & Pinion gear set for GM 8.2" in a 3.55 ratio
Part Number: SPZ-36204
Not Yet Reviewed
Estimated Ship Date: Dec 19, 2025 if ordered today
Estimated Ship Date: Dec 19, 2025 if ordered today
Gear, Ring and Pinion, 3.08:1 Ratio, GM, 8.5/8.6 in., Set
Part Number: MGR-G885308
Estimated Ship Date: Dec 23, 2025 if ordered today
Estimated Ship Date: Dec 23, 2025 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Estimated Ship Date: Today
Ring and Pinion Gears,Yukon Gear & Axle 7.5"/7.625" GM, 3.08 Ratio Rear Ring & Pinion GearInstall Kit 2.25" OD Axle Bearings & Seals
Part Number: YGA-10635
Not Yet Reviewed
Estimated Ship Date: Jan 5, 2026 if ordered today
Estimated Ship Date: Jan 5, 2026 if ordered today
Differential Internals, Yukon Dura Grip or Eaton Positraction Internals for 8.5" GM with 28 Spline Axles, Kit
Part Number: YGA-16052
Not Yet Reviewed
Estimated Ship Date: Jan 5, 2026 if ordered today
Estimated Ship Date: Jan 5, 2026 if ordered today
Spider Gear Kits, Open Differential, GM 7.5/7.625 in., 26 Spline, Kit
Part Number: MGR-GM7-5BI
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Spool, Mini, Steel, 28-Spline, 10-Bolt, GM 8.5 in., Each
Part Number: RMG-78-1028-1
Estimated Ship Date: Today
Estimated Ship Date: Today
Ring and Pinion Gears and Installation Kit, 8.5" GM 3.73 REAR R&P GEAR/ INSTALL KIT PACKAGE with AK 1563 AXLE BRGS (2.25" OD)
Part Number: YGA-12622
Not Yet Reviewed
Estimated Ship Date: Jan 5, 2026 if ordered today
Estimated Ship Date: Jan 5, 2026 if ordered today
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