USA Standard Gear packages provide an easy way to re-gear a four wheel drive vehicle with one simple part number. This is a complete package that includes front & rear ring & pinion sets along with the most complete master overhaul kits on the market, giving you everything you need to re-gear the front & rear differential in one easy part number.
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.- First, determine your Differential Type.
- 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.
 Which Differential Rebuild Kit Is Right For You?
| Kit Type |
Typical Contents
(Actual Contents Vary By Brand / Application) |
| Standard |
• Pinion Bearings & Races
• Carrier Bearings & Races
• Pinion Nut & Seal (where applicable)
• Crush Sleeve or Preload Shims (where applicable)
• Various Sealants / Marking Compounds |
| Master |
Standard Kit, Plus:
• Ring Gear Bolts
• Carrier & Pinion Shims (where applicable) |
| Mega |
Master Kit, Plus:
• Wheel (Axle) Bearings & Seals |
| Super |
Mega Kit, Plus:
• Differential Ring and Pinion |
 Additional Resources
Torque Specifications & Installation Instructions
 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.
Phone: 1-866-748-0902 (M-F 6am-4pm PST)
Attention California Customers - WARNING: This product can expose you to chemicals including arsenic, which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov.
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