Performance. Precision. Proven.
Street, Strip, Trail or Work, We've got the guaranteed quality Gear & Axle parts to get you there and back!

Sierra Gear & Axle

Sierra Gear and Axle is a premium line of light duty differential and axle parts established in 1998. Our ring and pinion gear sets are ideal for stock replacement or gear ratio changes. We offer a complete line of differential rebuild kits. Sierra Gear stock replacement and performance Chromoly axle shafts are available for GM, Ford, Chrysler, Jeep and Toyota vehicles. All parts are designed and engineered to the highest quality specifications for use in street, off road and performance axle applications.

Trusted by

the Pros!

Product Categories

Ring & Pinion Gear Sets

Sierra Gear & Axle has a complete inventory of Ring and Pinion Gear Sets.

Differential Installation Kits

Our Differential Repair Rebuild and Installation Kits are the most complete in the industry!

Replacement Axle Shafts

Sierra Gear & Axle has a complete line of Front & Rear Axle Shafts.

Performance Axle Shafts

Chromoly Performance Axle Shafts from Sierra Gear & Axle.

Work or Play, On Road or Off…We’ve Got you Covered!


Find a Dealer

Use our dealer locator to find the nearest dealer or installer.

Gear Calculator

Doing a gear ratio change but not sure what you what’s best? Try our Calculator!

Technical Info

From Gear Ratio Calculators to complete Installation Instructions. You’ve found the place!



Years in Business

Featured Products, News & Specials

Guaranteed Quality Gear & Axle Parts Since 1992!

Happy Customers

“The Sierra brand gear is by far some of the nicest and easiest to set up aftermarket gears available. They have superb product knowledge and fantastic customer service.”

Ray H.

“Sierra Gear and their crew have kept me in the gear business since 1999. Great parts at great prices!”

John M.

“Don’t go anywhere else!  All the guys were very polite and professional, and the technical support I got over the phone was awesome. Great communication…The owner should be very proud. Great work Sierra!!!”

Eric W.