Availability
Gear, Ring and Pinion, 2.73:1, GM, 8.5 in., 8.6 in., Set
Part Number: SPZ-36346
Not Yet Reviewed
Estimated Ship Date: Nov 10, 2025 if ordered today
Estimated Ship Date: Nov 10, 2025 if ordered today
USA Standard mini spool for GM 8.2"
Part Number: SPZ-59024
Not Yet Reviewed
Estimated Ship Date: Nov 11, 2025 if ordered today
Estimated Ship Date: Nov 11, 2025 if ordered today
USA Standard Ring & Pinion gear set for GM 8.2" in a 4.11 ratio
Part Number: SPZ-36206
Not Yet Reviewed
Estimated Ship Date: Nov 11, 2025 if ordered today
Estimated Ship Date: Nov 11, 2025 if ordered today
Ring and Pinion Gears, 5.38:1 Ratio, 30-spline, Standard Ring Gear Rotation, GM 8.5 in., GM 8.6 in., Set
Part Number: SPZ-36221
Not Yet Reviewed
Estimated Ship Date: Nov 11, 2025 if ordered today
Estimated Ship Date: Nov 11, 2025 if ordered today
8.5" GM 28spl MINI SPOOL
Part Number: SPZ-59011
Not Yet Reviewed
Estimated Ship Date: Nov 11, 2025 if ordered today
Estimated Ship Date: Nov 11, 2025 if ordered today
SPRING AND PIN KIT
Part Number: SPZ-17011
Not Yet Reviewed
Estimated Ship Date: Nov 10, 2025 if ordered today
Estimated Ship Date: Nov 10, 2025 if ordered today
Spartan Differential Locker, GM 8.5 in., 28-spline Axle, Buick, Oldsmobile, Pontiac, Chevy, GMC, Each
Part Number: SPZ-17040
Estimated Ship Date: Nov 11, 2025 if ordered today
Estimated Ship Date: Nov 11, 2025 if ordered today
Need It Sooner? We recommend these similar substitute parts:
USA Standard Ring & Pinion gear set for GM 12 bolt car in a 3.42 ratio
Part Number: SPZ-36165
Not Yet Reviewed
Estimated Ship Date: Nov 10, 2025 if ordered today
Estimated Ship Date: Nov 10, 2025 if ordered today
Gear, Ring and Pinion, 3.36:1 Ratio, GM 8.2 in., Set
Part Number: SPZ-36203
Not Yet Reviewed
Estimated Ship Date: Oct 27, 2025 if ordered today
Estimated Ship Date: Oct 27, 2025 if ordered today
USA Standard Ring & Pinion "thick" gear set for GM 12 bolt car in a 4.11 ratio
Part Number: SPZ-36171
Not Yet Reviewed
Estimated Ship Date: Oct 27, 2025 if ordered today
Estimated Ship Date: Oct 27, 2025 if ordered today
Axle Shaft, Direct Fit, w/2.30 in. Bearing Offset, Heat Treat, LH, Rear, 17-spline, 28.825 in. Long, for non-Corvette GM 55P Differentials, Chevy,Kit
Part Number: SPZ-12217
Not Yet Reviewed
Estimated Ship Date: Oct 27, 2025 if ordered today
Estimated Ship Date: Oct 27, 2025 if ordered today
USA Standard Ring & Pinion gear set for GM 12 bolt car in a 3.55 ratio
Part Number: SPZ-36166
Not Yet Reviewed
Estimated Ship Date: Oct 27, 2025 if ordered today
Estimated Ship Date: Oct 27, 2025 if ordered today
Axle 58-'64 GM 55P REAR, RHSHAFT, 17spl, 30-1/4", w/2.300" BEARING OFFSET (NOT_CORVETTE)
Part Number: SPZ-12218
Not Yet Reviewed
Estimated Ship Date: Oct 27, 2025 if ordered today
Estimated Ship Date: Oct 27, 2025 if ordered today
Ring and Pinion Gears, 3.08:1 Ratio, 25-spline, Standard Ring Gear Rotation, GM 8.2 in., Set
Part Number: SPZ-36202
Not Yet Reviewed
Estimated Ship Date: Oct 31, 2025 if ordered today
Estimated Ship Date: Oct 31, 2025 if ordered today
USA Standard Ring & Pinion gear set for GM 12 bolt car in a 4.11 ratio
Part Number: SPZ-36170
Not Yet Reviewed
Estimated Ship Date: Oct 27, 2025 if ordered today
Estimated Ship Date: Oct 27, 2025 if ordered today
Manual Transmission Shaft Nut, Manual Transmission Input Shaft Nut
Part Number: SPZ-ZMMUNPR707A
Not Yet Reviewed
Estimated Ship Date: Oct 27, 2025 if ordered today
Estimated Ship Date: Oct 27, 2025 if ordered today
Ring and Pinion Gears,USA Standard 8.2" GM, 3.08 Ratio Rear Ring & Pinion GearInstall Kit 28 Spline and 2.25" OD Axle Bearings & Seals
Part Number: SPZ-10667
Not Yet Reviewed
Estimated Ship Date: Oct 31, 2025 if ordered today
Estimated Ship Date: Oct 31, 2025 if ordered today
Axle 55P GM REAR, '55-'56 Pass Car & 56 Corvette, RH, 17spl, 30-3/16" LONG, 1.20" BEARING OFFSET
Part Number: SPZ-12222
Not Yet Reviewed
Estimated Ship Date: Oct 27, 2025 if ordered today
Estimated Ship Date: Oct 27, 2025 if ordered today
Axle 55P GM REAR, '55-'56 Pass Car & 56 Corvette, LH, 17spl, 28-3/4" LONG, 1.20" BEARING OFFSET
Part Number: SPZ-12221
Not Yet Reviewed
Estimated Ship Date: Oct 27, 2025 if ordered today
Estimated Ship Date: Oct 27, 2025 if ordered today
Axle 55P GM REAR, 1957 Pass Car & Corvette, LH, 17spl, 28-9/16" LONG, 1.940" BEARING OFFSET
Part Number: SPZ-12223
Not Yet Reviewed
Estimated Ship Date: Nov 10, 2025 if ordered today
Estimated Ship Date: Nov 10, 2025 if ordered today
Axle 55P GM REAR, 1957 Pass Car & Corvette, RH, 17spl, 30" LONG, 1.940" BEARING OFFSET
Part Number: SPZ-12224
Not Yet Reviewed
Estimated Ship Date: Nov 10, 2025 if ordered today
Estimated Ship Date: Nov 10, 2025 if ordered today
Ring and Pinion Gears,USA Standard 8.2" GM, 3.08 Ratio Rear Ring & Pinion GearInstall Kit 2.25" OD Axle Bearings & Seals
Part Number: SPZ-10664
Not Yet Reviewed
Estimated Ship Date: Oct 31, 2025 if ordered today
Estimated Ship Date: Oct 31, 2025 if ordered today
USA Standard Master Overhaul kit for the '86 and newer Toyota 8" differential
Part Number: SPZ-37070
Estimated Ship Date: Nov 10, 2025 if ordered today
Estimated Ship Date: Nov 10, 2025 if ordered today
USA Standard Master Overhaul kit for the '85 and older Toyota 8" differential
Part Number: SPZ-37069
Not Yet Reviewed
Estimated Ship Date: Nov 10, 2025 if ordered today
Estimated Ship Date: Nov 10, 2025 if ordered today
Spartan Differential Locker, Toyota, 8.0 in., 30-spline Axle, Rear, Each
Part Number: SPZ-17015
Estimated Ship Date: Nov 10, 2025 if ordered today
Estimated Ship Date: Nov 10, 2025 if ordered today
Modal Header
Call To Order
This is a custom order part. You can order this part by Contacting Us.