I'm planning on DIY'ing my brakes this weekend and I would like to know whats the best way to find out whether or I should get the composite or cast rotors. I saw that they had different wheel stud lengths as well (1 1/8" for composite, 1 1/2" for cast). I read a writeup about the change that occurred in mid 1999 and I don't know if my jeep is a 1999 or a 1999.5. Any help is appreciated
Senior Member
Bring a rotor with you to the parts store. 
If you set the rotor on the counter, the "composite" ones have a rounded corner on the upper small hat part. The cast ones are more square.
Or, just haul one in to the store.. I did and found out that some dink put composites on my '92. Caused all sortsa hell. Replaced with cast and new hardware and it's all good now.
If you set the rotor on the counter, the "composite" ones have a rounded corner on the upper small hat part. The cast ones are more square.
Or, just haul one in to the store.. I did and found out that some dink put composites on my '92. Caused all sortsa hell. Replaced with cast and new hardware and it's all good now.