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Charts & Guides for Part Number SPZ-36217
USA Standard Gear Ring and Pinion Sets ZG GM8.5-430 GM 8.5/8.6 in. 4.30 Gears
Part Number: SPZ-36217
USA Standard Gear Ring and Pinion Sets
Ring and Pinion Gear, 4.30:1 Ratio, GM, 8.5 in./8.6 in., Rear, Set
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Estimated Ship Date: Mar 9, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
ZG GM8.5-430
Part Type:
Product Line:
Summit Racing Part Number:
SPZ-36217
UPC:
883584362173
Differential Case Design Type:
GM 8.5/8.6 in.
Ring and Pinion Ratio:
4.30:1
Cover Bolts:
10
Ring Gear Bolts:
10
Pinion Spline Count:
30
Ring Gear Rotation:
Standard
Ring Gear Teeth:
43
Pinion Gear Teeth:
10
Ring Gear Diameter (in.):
8.500 in.
Pinion Shaft Diameter (in.):
1.626 in.
Installation Kit Included:
No
Cover Gasket Included:
No
Pinion Shims Included:
No
Carrier Shims Included:
No
Crush Sleeve Included:
No
Pinion Seal Included:
No
Pinion Nut Included:
No
Ring Gear Bolts Included:
No
Head Bearing Included:
No
Tail Bearing Included:
No
Carrier Bearings Included:
No
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 set.
Notes:
Must use 2.73:1 or numerically higher ratio carrier.
USA Standard Gear Ring and Pinion Sets
USA Standard Gear ring and pinion sets are high-quality and precision-machined replacements. They're offered for a wide variety of common and hard-to-find applications, differential case designs, and ratios. The right choice adds confidence to your install; select the USA Standard ring and pinion set recommended for your vehicle.
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Instructions & Calculators
Some parts are not legal for use in California or other states with similar laws / regulations
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