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USA Standard Gear Ring and Pinion Gear Kit Packages ZGK2108 AAM/Chrysler/GM 11.5 in. 4.56 Gears
Part Number: SPZ-10821
USA Standard Gear Ring and Pinion Gear Kit Packages
Ring and Pinion Gears,USA Standard 11.5" AAM, 4.56 Ratio Rear Ring & Pinion GearInstall Kit 4.125" OD Inner Pinion Bearing
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Estimated Ship Date: Oct 26, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
ZGK2108
Part Type:
Product Line:
Summit Racing Part Number:
SPZ-10821
UPC:
883584108214
Differential Case Design Type:
AAM/Chrysler/GM 11.5 in.
Ring and Pinion Ratio:
4.56:1
Cover Bolts:
14
Ring Gear Bolts:
12
Pinion Spline Count:
30
Ring Gear Rotation:
Standard
Ring Gear Teeth:
41
Pinion Gear Teeth:
9
Ring Gear Diameter (in.):
11.500 in.
Pinion Shaft Diameter (in.):
2.005 in.
Installation Kit Included:
Yes
Cover Gasket Included:
No
Pinion Shims Included:
Yes
Carrier Shims Included:
No
Crush Sleeve Included:
Yes
Pinion Seal Included:
Yes
Pinion Nut Included:
Yes
Ring Gear Bolts Included:
Yes
Head Bearing Included:
Yes
Tail Bearing Included:
Yes
Carrier Bearings Included:
Yes
Axle Seals Included:
No
Axle Bearings Included:
No
Differential Cover Included:
No
Differential Oil Included:
No
Friction Modifier Included:
No
Installation DVD Included:
No
Quantity:
Sold as a kit.
Notes:
Kit includes HM807046/HM807010 inner pinion bearing and race with a 4.125 in. O.D. pinion bearing.
USA Standard Gear Ring and Pinion Gear Kit Packages
USA Standard Gear ring and pinion gear kit packages provide all you need to re-gear your front or rear differentials. They include ring and pinion sets along with master overall kits to fully complete your job. Save time searching for components—and save money by purchasing everything at the same time. Service the front or rear of your rig with a ring and pinion gear kit package from USA Standard Gear.
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