Availability
Ring and Pinion Installation Kit, GM 8.6 in., Rear, Kit
Part Number: SPZ-37059
Estimated Ship Date: Monday 8/4/2025
Estimated Ship Date: Monday 8/4/2025
Ring and Pinion Gear, 3.73:1 Ratio, GM, 8.5 in./8.6 in., Rear, Set
Part Number: SPZ-36214
Estimated Ship Date: Monday 8/4/2025
Estimated Ship Date: Monday 8/4/2025
Differential Carrier Rebuild Kits and Spider Gears, Spider Gear Sets, GM 8.875 in. (12-bolt), Car/Truck, 30-spline, Buick, Chevy, GMC, Pontiac, Kit
Part Number: SPZ-39021
Estimated Ship Date: Monday 8/4/2025
Estimated Ship Date: Monday 8/4/2025
Ring and Pinion Gears,USA Standard 8.875" GM 12 Bolt Truck, 3.08 Ratio Rear Ring & Pinion GearInstall Kit Axle Bearings & Seals
Part Number: SPZ-10680
Not Yet Reviewed
Estimated Ship Date: Aug 21, 2025 if ordered today
Estimated Ship Date: Aug 21, 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: Sep 8, 2025 if ordered today
Estimated Ship Date: Sep 8, 2025 if ordered today
Ring and Pinion Installation Kit, GM 8.5 in., Rear, Kit
Part Number: SPZ-37055
Estimated Ship Date: Monday 8/4/2025
Estimated Ship Date: Monday 8/4/2025
Differential Carrier Rebuild Kits and Spider Gears, GM 8.5 in., Side Gears, 28-spline, 10-bolt, Buick, Chevrolet, GMC, Oldsmobile, Pontiac, Kit
Part Number: SPZ-39026
Estimated Ship Date: Monday 8/4/2025
Estimated Ship Date: Monday 8/4/2025
Ring and Pinion Gears,USA Standard 8.5" GM, 3.73 Ratio Rear Ring & Pinion GearInstall Kit 30
Part Number: SPZ-10713
Not Yet Reviewed
Estimated Ship Date: Aug 21, 2025 if ordered today
Estimated Ship Date: Aug 21, 2025 if ordered today
Ring and Pinion Gears,USA Standard 8.5" GM, 3.73 Ratio Rear Ring & Pinion GearInstall Kit Axle Bearings & Seals. Fits 1.781" Carrier Bearing Journal
Part Number: SPZ-10718
Not Yet Reviewed
Estimated Ship Date: Aug 21, 2025 if ordered today
Estimated Ship Date: Aug 21, 2025 if ordered today
USA Standard Master Overhaul kit GM 8.5 in., Rear, Kit
Part Number: SPZ-37057
Estimated Ship Date: Monday 8/4/2025
Estimated Ship Date: Monday 8/4/2025
Ring and Pinion Gears,USA Standard 8.875" GM 12 Bolt Truck, 3.42 Ratio Rear Ring & Pinion GearInstall Kit Axle Bearings & Seals
Part Number: SPZ-10681
Not Yet Reviewed
Estimated Ship Date: Aug 21, 2025 if ordered today
Estimated Ship Date: Aug 21, 2025 if ordered today
Axle Shaft, 28-Spline, 31.313 in. Length, Rear, Chevy, GMC, Each
Part Number: SPZ-35172
Not Yet Reviewed
Estimated Ship Date: Monday 8/4/2025
Estimated Ship Date: Monday 8/4/2025
Ring and Pinion Gear, 4.11:1 Ratio, GM, 8.5 in./8.6 in., Rear, Set
Part Number: SPZ-36216
Not Yet Reviewed
Estimated Ship Date: Monday 8/4/2025
Estimated Ship Date: Monday 8/4/2025
Ring and Pinion Gear Installation Kits, Master Overhaul Kits, 30-spline, GM 8.875 in. (12-bolt) Truck, Rear, Chevrolet, GMC, Kit
Part Number: SPZ-37043
Not Yet Reviewed
Estimated Ship Date: Monday 8/4/2025
Estimated Ship Date: Monday 8/4/2025
Ring and Pinion Gear, 4.56:1 Ratio, GM, 8.5 in./8.6 in., Rear, Set
Part Number: SPZ-36218
Not Yet Reviewed
Estimated Ship Date: Monday 8/4/2025
Estimated Ship Date: Monday 8/4/2025
Differential Carrier, Spartan Locker, 30-spline, Steel, Rear, GM 8.875 in., Each
Part Number: SPZ-17032
Estimated Ship Date: Monday 8/4/2025
Estimated Ship Date: Monday 8/4/2025
Ring and Pinion Gears,USA Standard 8.6" GM, 3.42 Ratio Rear Ring & Pinion GearInstall Kit Axle Bearings & Seals
Part Number: SPZ-10732
Not Yet Reviewed
Estimated Ship Date: Aug 21, 2025 if ordered today
Estimated Ship Date: Aug 21, 2025 if ordered today
USA Standard Ring & Pinion "thick" gear set for GM 12 bolt truck in a 4.11 ratio
Part Number: SPZ-36178
Not Yet Reviewed
Estimated Ship Date: Aug 21, 2025 if ordered today
Estimated Ship Date: Aug 21, 2025 if ordered today
USA Standard Ring & Pinion gear set for GM 12 bolt truck in a 3.73 ratio
Part Number: SPZ-36176
Not Yet Reviewed
Estimated Ship Date: Aug 21, 2025 if ordered today
Estimated Ship Date: Aug 21, 2025 if ordered today
Ring and Pinion Gears,USA Standard 8.6" GM, 3.73 Ratio Rear Ring & Pinion GearInstall Kit Axle Bearings & Seals
Part Number: SPZ-10733
Not Yet Reviewed
Estimated Ship Date: Monday 8/4/2025
Estimated Ship Date: Monday 8/4/2025
Ring and Pinion Gears, 3.23:1 Ratio, 30-spline, Standard Ring Gear Rotation, GM 8.5/8.6 in., Set
Part Number: SPZ-36212
Not Yet Reviewed
Estimated Ship Date: Aug 20, 2025 if ordered today
Estimated Ship Date: Aug 20, 2025 if ordered today
Differential Carrier Gear Kit, USA Standard Gear standard spider gear set for '07 & up GM 8.6"
Part Number: SPZ-39036
Not Yet Reviewed
Estimated Ship Date: Monday 8/4/2025
Estimated Ship Date: Monday 8/4/2025
Gear, Ring and Pinion, 4.11:1 Ratio, GM 8.875 in. Truck, Set
Part Number: SPZ-36177
Not Yet Reviewed
Estimated Ship Date: Aug 21, 2025 if ordered today
Estimated Ship Date: Aug 21, 2025 if ordered today
USA Standard Ring & Pinion gear set for GM 9.5" in a 4.56 ratio
Part Number: SPZ-36226
Not Yet Reviewed
Estimated Ship Date: Aug 19, 2025 if ordered today
Estimated Ship Date: Aug 19, 2025 if ordered today
Ring and Pinion Gears,USA Standard 8.875" GM 12 Bolt Truck, 3.73 Ratio Rear Ring & Pinion GearInstall Kit Axle Bearings & Seals
Part Number: SPZ-10682
Not Yet Reviewed
Estimated Ship Date: Aug 21, 2025 if ordered today
Estimated Ship Date: Aug 21, 2025 if ordered today
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