Yukon Gear & Axle is the leading designer and manufacturer of high-quality Ring & Pinion gear sets for the aftermarket applications. Yukon engineers pay strict attension to every detail from gear design to final inspection, making certain that you're getting the highest quality gear set available in the aftermarket today. Yukon has smart people developing and building better gears.
As an integral part of the product development process, Yukon consistently goes the extra mile to ensure that released products meet its high standards.
-Our "Yukon Gear" line of Ring & Pinions are designed to run quiet and last longer than other aftermarket gear sets.
-They are easy to set-up and manufactured to meet our highest standards.
-The premium choice for off-road and recreational 4-wheel drive enthusiast!
During manufacturing, Yukon includes a number of key steps to ensure that its products deliver the highest quality. The company employs better forgings to increase strength and maintain performance consistency. Furthermore, Yukon uses CNC-controlled machines to control critical tolerances. Yukon inspects all components after rough machining, blanking, prior to heat treatment, and after final grinding processes. It's an intensive process, but only that kind of scrutiny can produce a fine tolerance part that will take abuse and stay quiet. Computer-monitored heat treatment delivers consistent hardness, and computer controlled lapping ensures a better pattern.
THESE STEPS GUARANTEE THE HIGHEST QUALITY:
- Actual installation and inspection of fitment and contact pattern in test vehicles or housings
- Review of fit with mating components (case, yoke, pinion nut, bearings)
- Verification of industry-standard pinion and carrier shim thicknesses
- Noise testing in vehicles

This is a 4.30 THICK gear, it will fit in the 4.10 and lower case.
If you do not want to change your case this is the gear for you.