Availability
USA Standard Master Overhaul kit for the GM 12P differential
Part Number: SPZ-37042
Not Yet Reviewed
Estimated Ship Date: Dec 8, 2025 if ordered today
Estimated Ship Date: Dec 8, 2025 if ordered today
Ring and Pinion Gears, 3.55:1 Ratio, 29-spline, Standard Ring Gear Rotation, Chrysler 8.75 in., 489 Case, Set
Part Number: SPZ-36014
Not Yet Reviewed
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Estimated Ship Date: Tomorrow
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: Dec 5, 2025 if ordered today
Estimated Ship Date: Dec 5, 2025 if ordered today
Ring and Pinion Gears, 4.30:1 Ratio, 29-spline, Reverse Rotation, Dana 60, Ford, Front, Set
Part Number: SPZ-36304
Not Yet Reviewed
Estimated Ship Date: Dec 8, 2025 if ordered today
Estimated Ship Date: Dec 8, 2025 if ordered today
USA Standard Master Overhaul kit Dodge, Ram, 9.25 in., Front, Kit
Part Number: SPZ-37083
Not Yet Reviewed
Estimated Ship Date: Dec 9, 2025 if ordered today
Estimated Ship Date: Dec 9, 2025 if ordered today
Ring and Pinion Gears, Ford 10.5 in., 3.73:1 Ratio, 31-spline, Standard Rotation, Ford 10.5 in., Rear, Ford, Set
Part Number: SPZ-36273
Estimated Ship Date: Dec 8, 2025 if ordered today
Estimated Ship Date: Dec 8, 2025 if ordered today
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Estimated Ship Date: Tomorrow
Ring and Pinion Gears, 3.70:1 Ratio, Standard Ring Gear Rotation, Ford 9 in., Set
Part Number: SPZ-36137
Not Yet Reviewed
Estimated Ship Date: Dec 5, 2025 if ordered today
Estimated Ship Date: Dec 5, 2025 if ordered today
Ring and Pinion Gears, 3.55:1 Ratio, 31-spline, Standard Rotation, Long Spline Design, Ford 10.25 in., Set
Part Number: SPZ-36103
Not Yet Reviewed
Estimated Ship Date: Dec 5, 2025 if ordered today
Estimated Ship Date: Dec 5, 2025 if ordered today
USA Standard Master Overhaul kit Ford, 10.5 in., Rear, Kit
Part Number: SPZ-37085
Estimated Ship Date: Dec 8, 2025 if ordered today
Estimated Ship Date: Dec 8, 2025 if ordered today
Spartan Differential Locker, Dana 44, 30-spline Axle, Jeep, Ford, Dodge, International, Isuzu, Each
Part Number: SPZ-17001
Estimated Ship Date: Dec 9, 2025 if ordered today
Estimated Ship Date: Dec 9, 2025 if ordered today
USA Standard Master Overhaul kit Ford, 9.75 in., Kit
Part Number: SPZ-37102
Not Yet Reviewed
Estimated Ship Date: Dec 9, 2025 if ordered today
Estimated Ship Date: Dec 9, 2025 if ordered today
USA standard ring & pinion gear set for Dana 44 in a 3.92 ratio.
Part Number: SPZ-36269
Not Yet Reviewed
Estimated Ship Date: Dec 4, 2025 if ordered today
Estimated Ship Date: Dec 4, 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: Dec 5, 2025 if ordered today
Estimated Ship Date: Dec 5, 2025 if ordered today
Spartan Differential Locker, Ford 8.8 in., 31-spline Axle, Ford, Each
Part Number: SPZ-17005
Estimated Ship Date: Dec 9, 2025 if ordered today
Estimated Ship Date: Dec 9, 2025 if ordered today
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USA Standard Master Overhaul kit for the Dana 44 JK non-Rubicon rear differential
Part Number: SPZ-37014
Not Yet Reviewed
Estimated Ship Date: Dec 9, 2025 if ordered today
Estimated Ship Date: Dec 9, 2025 if ordered today
USA Standard Master Overhaul kit, GM 9.5 in., Kit
Part Number: SPZ-37118
Not Yet Reviewed
Estimated Ship Date: Dec 9, 2025 if ordered today
Estimated Ship Date: Dec 9, 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: Dec 4, 2025 if ordered today
Estimated Ship Date: Dec 4, 2025 if ordered today
USA Standard Ring & Pinion Gear Set for 9.5" GM 12 Bolt in a 4.88 ratio
Part Number: SPZ-36444
Not Yet Reviewed
Estimated Ship Date: Dec 4, 2025 if ordered today
Estimated Ship Date: Dec 4, 2025 if ordered today
Ring and Pinion Gears, 5.13:1 Ratio, 31-spline, Standard Rotation, Long Spline Design, Ford 10.25 in., Set
Part Number: SPZ-36111
Not Yet Reviewed
Estimated Ship Date: Jan 2, 2026 if ordered today
Estimated Ship Date: Jan 2, 2026 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: Dec 8, 2025 if ordered today
Estimated Ship Date: Dec 8, 2025 if ordered today
Ring and Pinion Gears, 4.11:1 Ratio, 26-spline, Reverse Ring Gear Rotation, Dana 44, Set
Part Number: SPZ-36065
Not Yet Reviewed
Estimated Ship Date: Dec 8, 2025 if ordered today
Estimated Ship Date: Dec 8, 2025 if ordered today
USA Standard Ring & Pinion gear set for GM 9.5" in a 4.88 ratio
Part Number: SPZ-36227
Not Yet Reviewed
Estimated Ship Date: Dec 5, 2025 if ordered today
Estimated Ship Date: Dec 5, 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: Dec 5, 2025 if ordered today
Estimated Ship Date: Dec 5, 2025 if ordered today
USA Standard Ring & Pinion gear set for GM 9.25" IFS Reverse rotation in a 5.13 ratio
Part Number: SPZ-36222
Not Yet Reviewed
Estimated Ship Date: Dec 5, 2025 if ordered today
Estimated Ship Date: Dec 5, 2025 if ordered today
Ring and Pinion Gears,USA Standard 8.875" GM 12 Bolt Truck, 4.11 Ratio Thick Rear Ring & Pinion GearInstall Kit Axle Bearings & Seals
Part Number: SPZ-10685
Not Yet Reviewed
Estimated Ship Date: Dec 5, 2025 if ordered today
Estimated Ship Date: Dec 5, 2025 if ordered today
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