xj yj

I need to know what type of wheel bearing/hub I have to get for my cherokee. I have seen two different types and don't know what to get. Any help is appreciated.

Thanks

99WhiteLightning

best bet is to take of ur tire and measure the length of a stud then go to the parts store and ask to see both they are both differen sizes. but i think my 99 is the full cast no garentee i kinda forgot all ready lol

91 limited owner

Not trying to **** off people. But does help a lot if you where to fill out the your profile.

Crow Horse

Some info culled from another forum...

** You need to match the disk brake rotor type and measurements to the unit bearing/hub type and measurements currently on your XJ. Previous owners may have installed different type replacement parts. **

On late 1999 - 2001 unit bearing/hubs the ring around the 36MM shaft retaining nut is almost 3/4 inch tall and the hub has longer lug nut studs than older hubs. This style of hub uses the cast rotor. See the axle shaft picture below.

On early 1990 - 1999 unit bearing/hubs the ring around 36MM shaft retaining nut is about 1/2 inch tall. This style of hub uses the composite rotor. See the axle shaft picture below.

Cast vs. Composite rotors Identification and Measurement -

Lay your old rotor on your bench and measure from the bench to the top of the rotor. Be aware that your rotors may have been replaced before and may have a different physical appearance than described and pictured below.

Composite rotors should have a rounded off corner at the wheel mounting surface and look like two pieces joined together. Composite rotors have a thin sheet metal like appearance at the holes where the lug nut studs come through and measure about 1/8 "(.125) thick in this area. Composite rotors have an overall height of 3 3/16".

Cast rotors have a 90 degree angle edge at the wheel mounting surface and look like they are one solid piece of metal. Cast rotors are thicker at the lug nut stud holes and measure between 1/4" (.250) to 5/16 (.320) in this area. Cast rotors have an overall height of 3 1/16".

Crow Horse

I just replaced mine on my 99 that had composite rotors. I was changing the rotors as well so I opted for the cast rotor and wheel bearing hub combo......