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US Gear

US Gear GM 8.875" 12 Bolt Car 3.55 Ratio Crown Wheel & Pinion Gear Set

US Gear GM 8.875" 12 Bolt Car 3.55 Ratio Crown Wheel & Pinion Gear Set

SKU: 01-888355


Regular price $737.00
Regular price Sale price $737.00
Sale Sold out
GST included. Shipping calculated at checkout.

Shipping Calculated at Checkout

For GM 8.875" (12 Bolt); 3.55 Ratio; Requires a 3.07 to 3.73 Ratio Carrier

Vehicle Applications:

1971-1972 Buick Centurion
1965-1972 Buick Electra
1971-1972 Buick Estate Wagon
1965-1967 Buick Gran Sport
1970-1972 Buick GS
1968-1969 Buick GS 350
1968-1969 Buick GS 400
1970-1972 Buick GS 455
1971-1972 Buick LeSabre
1971-1972 Buick Skylark
1965-1969 Buick Special
1964-1972 Buick Sportwagon
1965-1970 Chevrolet Bel Air
1967-1972 Chevrolet Camaro
1966-1972 Chevrolet Caprice
1964-1973 Chevrolet Chevelle
1965-1968 Chevrolet Chevy II
1965-1972 Chevrolet El Camino
1965-1972 Chevrolet Impala
1965-1967 Chevrolet Malibu
1970-1972 Chevrolet Monte Carlo
1969-1972 Chevrolet Nova
1971-1972 GMC Sprint
1971-1971 Oldsmobile 442
1965-1972 Oldsmobile 98
1971-1972 Oldsmobile Cutlass
1971-1972 Oldsmobile Cutlass Supreme
1967-1968 Oldsmobile Delmont 88
1965-1972 Oldsmobile Delta 88
1965-1972 Oldsmobile F85
1965-1966 Oldsmobile Jetstar 88
1965-1965 Oldsmobile Jetstar I
1965-1966 Oldsmobile Starfire
1967-1972 Oldsmobile Vista Cruiser
1965-1971 Pontiac Acadian
1965-1969 Pontiac Beaumont
1965-1972 Pontiac Bonneville
1965-1972 Pontiac Catalina
1967-1970 Pontiac Executive
1967-1972 Pontiac Firebird
1970-1972 Pontiac Grand Prix
1971-1972 Pontiac Grand Safari
1971-1972 Pontiac Grandville
1965-1972 Pontiac GTO
1965-1972 Pontiac Laurentian
1965-1972 Pontiac LeMans
1965-1972 Pontiac Parisienne
1965-1970 Pontiac Strato-Chief
1970-1970 Pontiac Tempest


Cover Bolt Quantity: 12
Differential Carrier Break: 3.07 to 3.73 Ratio
Differential Model: GM 8.875 Car
Pinion Gear Tooth Quantity: 13
Pinion Shaft Diameter: 1.625 Inch
Pinion Spline Count: 30
Ring & Pinion Gear Ratio: 3.55
Ring Gear Bolt Quantity: 12
Ring Gear Diameter: 8.875 Inch
Ring Gear Material: 8620 Steel
Ring Gear Rotation: Standard
Ring Gear Tooth Quantity: 40

Additional Information:


US Gear ring and pinion gear sets are good everyday gears. You can get the off-the-line power you need and still have the gas mileage to drive every day. US Gear combines engineering expertise, advanced manufacturing technology, and a precise heat treat process to produce the highest quality parts for the most extreme applications. Maximize your drivetrain performance--you'll love these gears!


Shipping in Australian

All Items purchased online are shipped from our Head Office/Warehouse located in Kogarah, New South Wales.

Orders are dispatched within 1-2 business days

Orders placed after 02:00pm will be shipped next business day

All orders are sent with detailed tracking information to your email.


We do NOT offer ATL (Authority to Leave) courier option

We do NOT ship to PO Boxes

Shipping International

We are currently not offering international shipping on our website.  Please contact us, with information on the products you are interested in, and we can send you quotes on Shipping Rates for your order.

If you require more information regarding delivery terms and conditions, please refer to our Shipping/Delivery Policy which outlines our Delivery Policy in more detail.

Local Pick Up/Click & Collect

We’ve introduced Local Pick Up/Click & Collect. That means you can order the product online and pick up from our Kogarah warehouse (find us here). 
For more information refer to our Local Pick Up
/Click & Collect

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