USA Standard Ring & Pinion Gear Set For GM 12 Bolt Car in a 3.73 Ratio

Manufacturer part number: ZG GM12P-373

Seen it cheaper? Send us the link. If we can beat it, we will.

CODE: YUKZG GM12P-373

~~$303.00~~

$360.54 Backorder — not currently in stock Sold out

BACKORDER — not currently in stock

This item is on backorder. A shipping date is not confirmed. Contact us for current lead time: 609-249-4921.

I understand this item is on backorder and its shipping date is not confirmed.

View our return policy

Buy now, pay later with Shop Pay.

Choose Shop Pay at checkout to see your available payment options.

Rates from 0-36% APR. Payment options through Shop Pay Installments are subject to an eligibility check and are provided by these lending partners: affirm.com/lenders. Options depend on your purchase amount, and a down payment may be required. State notices to consumers: affirm.com/licenses.

Buy nowCheckout this item

Share your vehicle details now, or choose to provide them later. For multiple items or installation, use Add to cart.

Vehicle info status

Shipping and applicable taxes are calculated at checkout.

I agree with the terms and conditions.

Select a vehicle info status to continue.

Shipping and applicable taxes are calculated at checkout.

Need it by a certain date? Call 609-249-4921 before ordering. Online availability does not confirm stock at our Hamilton shop; please call ahead for pickup or installation.

Your vehicle

Select or change your vehicle here before checkout. You stay on this product while Hurrey’s keeps the fitment context.

View compatible vehicles Call the shop Ask fitment

View compatible vehicles

USA Standard Gear ring and pinion sets are designed to exceed OEM specification. All sets receive rigorous in-house quality evaluation to ensure products pass dimensional, material, and fitment testing.

Installation Instructions
Installation Instructions

Fits GM 12 bolt passenger car
8.875" ring gear diameter
12 ring gear bolts
30 spline pinion
3.73 ratio

This Part Fits:

Year	Make	Model	Submodel
1964-1969	Buick	Wildcat	Base
1965-1970	Buick	Wildcat	Custom
1965	Buick	Wildcat	Deluxe
1966	Buick	Wildcat	Gran Sport
1964-1972	Chevrolet	Bel Air	Base
1964-1972	Chevrolet	Biscayne	Base
1967-1972	Chevrolet	Camaro	Base
1967-1972	Chevrolet	Camaro	RS
1967-1972	Chevrolet	Camaro	SS
1967-1972	Chevrolet	Camaro	Z28
1966-1970	Chevrolet	Caprice	Base
1964-1968	Chevrolet	Chevelle	300
1965-1969	Chevrolet	Chevelle	300 Deluxe
1970-1972	Chevrolet	Chevelle	Base
1967-1972	Chevrolet	Chevelle	Concours
1969-1972	Chevrolet	Chevelle	Concours Estate
1969-1972	Chevrolet	Chevelle	Greenbrier
1967-1972	Chevrolet	Chevelle	Malibu
1964-1965	Chevrolet	Chevelle	Malibu Super Sport
1968-1972	Chevrolet	Chevelle	Nomad
1968	Chevrolet	Chevelle	Nomad Custom
1971-1972	Chevrolet	Chevelle	SS
1967-1970	Chevrolet	Chevelle	SS 396
1966	Chevrolet	Chevelle	Super Sport 396
1964-1967	Chevrolet	Chevy II	Base
1964-1968	Chevrolet	Chevy II	Nova
1964-1967	Chevrolet	Chevy II	Nova SS
1965-1972	Chevrolet	El Camino	Base
1968-1972	Chevrolet	El Camino	Custom
1968-1972	Chevrolet	El Camino	SS
1964-1972	Chevrolet	Impala	Base
1964-1967	Chevrolet	Impala	SS
1970-1972	Chevrolet	Monte Carlo	Base
1969-1972	Chevrolet	Nova	Base
1969	Pontiac	Firebird	350
1969	Pontiac	Firebird	350 HO
1969	Pontiac	Firebird	400
1969-1972	Pontiac	Firebird	Base
1970-1972	Pontiac	Firebird	Esprit
1970-1972	Pontiac	Firebird	Formula
1969	Pontiac	Firebird	Sprint
1969-1972	Pontiac	Firebird	Trans Am
1970-1972	Pontiac	GTO	Base
1970-1971	Pontiac	GTO	The Judge