Ring Gear Diam: 8"; Diff Cover Bolts: 10; Ring Gear Bolts: 10; Pinion Splines: 27
USA Standard Gear premium ring & pinions set the standard for quality. Go ahead, add loads of horsepower & go big on tires because USA Standard Gear offers the widest selection of gear ratios to choose from. You'll know that your gear choice was the right one, because you chose USA Standard Gear.
Features & Benefits:
Engineers use state-of-the art design & testing processes, backed by 2 in-house quality labs to ensure each item manufactured meets exacting specifications & quality standards.
Gear tooth surface finish (USA Standard Gear-designed) reduces both friction & heat for long races & high torque conditions.
High grade steel in both the ring & pinion, with fitment designed to OEM specs.
Differential Identification Guide
To order the correct ring & pinion, it's crucial to know the differential type and gear ratio on your vehicle.
Next, determine the gear ratio on your vehicle using one of the following methods:
Count The Teeth: Divide the number of teeth on the ring gear (big gear) by the number of teeth on the pinion gear (small gear). If you have 37 teeth on your ring gear and 12 teeth on your pinion gear, you have a 3.08 Gear Ratio (37 ÷ 12 = 3.08).
Verify Through A Dealer: Verify the ratio using your VIN number. This will only be accurate if the differential has not been previously modified.
Use Your RPO Code: RPO codes can be found on GM vehicles by referencing the Service Parts Identification sticker (typically located in the glove box compartment or near the spare tire), or by scanning a QR code on 2018 and up vehicles (located at the bottom of the driver side door pillar).
What's In The Box?
USA Standard Gear Technical Support
If you are having trouble choosing the correct USA Standard Gear part, or experiencing issues during or after installation of this part, USA Standard Gear's technicians are available to help answer your questions.
USA Standard Gear Technical Support