I just purchased a 1999 SE with severely warped front rotors. I bought a pair of composite rotors from Advance, only to find out that there may be 2 different styles for 99 Wranglers. So, I've done some research, called the dealer with my Vin # (they couldn't tell me anything useful) and come to a few conclusions:
The build date of my Jeep is 2/99. I think I've determined that it has full cast rotors.
I pulled out a composite rotor and a full cast rotor at Advance and compared them side-by-side. I can barely tell any difference that would affect performance. In fact, sitting on the counter at the parts store - the full cast rotor looks like a composite piece and the composite rotor looks fully cast.
The full cast rotor looks closest to what the Jeep has on it now. Does all this sound Kosher? I've heard that the 2 styles are completely incompatible. Also, I would really like to do this right the first time.
Thanks in advance,