Ring and Pinion Gear Sets from Yukon Gear and Axle are designed to perform in the most demanding of conditions. Our Gear Install Kits are a simple, single purchase for those looking to upgrade a four wheel drive vehicle with these high performing ring and pinion gears. This is a complete package that includes front and rear ring and pinion sets along with the most complete master overhaul kits on the market, giving you everything you need to re-gear the front and rear differential. If you are currently running a 3.54 ratio, you will need to purchase a new front carrier with this package. If you are running a 3.07 ratio, you will need to purchase new front and rear carriers.