The slip yoke is an internal splined shaft that is connected to your driveshaft by means of a universal joint. The purpose of the slip yoke is to transfer power from the transfer case to your driveshaft. It slides in and out of your transfer case allowing it to change length in response to your Jeep's movements on and off-road. 

When is a Slip Yoke Eliminator Needed?

When lifting many Jeep models that are equipped most commonly either with a NP231 or NP242 transfer case, you will need to have a slip yoke eliminator installed when lifting the vehicle generally over 3-4" of lift on the following vehicles: Jeep XJ Cherokee, TJ Wrangler, ZJ Grand Cherokee, and YJ Wrangler models. The reason that the slip yoke eliminator kit is needed is to prevent extreme driveline angles on the factory driveshaft that can cause vibration, premature wear or driveline failure. 

What is a Slip Yoke Eliminator (SYE)?

By installing a Slip Yoke Eliminator, you convert the factory slip yoke to a fixed yoke which allows the installation of a double cardan rear driveshaft. The use of a double cardan rear driveshaft will allow for the operating angles of the u-joints to be reduced and the splined section of the driveshaft to be built into the new double cardan rear drive shaft which allows for changes in the driveshaft length during the suspension travel. 

At Rusty's we have bundled the following products to make your process of purchasing a slip yoke eliminator and double cardan rear driveshaft much easier by offering the needed parts together in a simple package for your application. Just order the correct package for your transfer case and we will ship out the slip yoke eliminator kit to you first. Once installed, using the supplied instructions to determine the drive shaft length needed for your vehicle. Give our sales team a call with your measurement and we will send out the driveshaft. Simple as that! There is no one size fits all mentality here. Every driveshaft we send out is made for your supplied length.