i have a 2001 cherokee sport. black, 4dr, 4.0L, 5 speed(NV3550), power door locks with remote entry, power windows, cruise, a/c, new starter new batt in may, cragar soft 8s, dark tinted windows, chrysler 8.25. NP231 102,xxx mi. runs extremly strong, doesnt use oil but the rear main seal has a...