G2 GM 8.5 Inch 10 Bolt 3.73 Ratio Ring and Pinion - 2-2021-373 | 4wheelparts.com

G2 GM 8.5 Inch 10 Bolt 3.73 Ratio Ring and Pinion - 2-2021-373

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  • G2 Axle and Gear | Part Number: G/22-2021-373
  • Popular Axle Manufacture:GM
  • Axle Location:Rear|Front
  • Axle Type:GM 10 Bolt 8.5 Inches|GM 10 Bolt 8.6 Inches
  • Fitment:Universal Fit
  • Gear Ratio:3.73


G2 Performance Ring & Pinion sets are engineered with todays most demanding applications in mind. Designed to hold up to oversized tires and high performance engines, these gears use the latest technology and materials in their manufacturing to give you the strongest and quietest performance gear sets available.

Customer Reviews

3.0 3.0
1 Customer ratings
3.0 Noisy

Purchased this ring and pinion for my Chevrolet Tahoe to change ratio for towing etc. The gears work well but are much louder than the stock gears which can be annoying.

from SLC, UT |


Question & Answers

2 Answered questions

Q: do I need a differnet gear set if I have a limited slip carrier Answer this question

A: Hello The ring and pinion will work with the open differential or with the limited slips.

Answered by Rody on 11/20/2014

Q: 2011 chevy Silverado crew cab 4x4. Will this work for my truck. I have a 3.08 ratio now, has drum brakes. Answer this question

A: Hello Jon, the G2 Axle and Gear GM 8.5in. 10 Bolt 3.73 Ratio part# G/22-2021-373 will work on your 2011 silverado. Thank you for your question.

Answered by mikey on 11/15/2014


G2 Axle & Gear uses the strongest and latest generation materials to manufacture products capable of handling heavy loads. When it comes to axle assemblies, core lockers, driveshafts and sway bars, G2 is the first name in durability and reliability. Off-roading can heap punishment on a Jeep and G2's laser-cut components offer superior handling on challenging terrain and on-road drives. Parts are easy to install and easy to service and above all, they remain operational in adverse environments. Shop G2 Axle and Gear Now