Flywheel Ring Gear for 1972-1986 Jeep CJ-5, CJ-6, CJ-7, CJ-8 w/ 4.2L Engine, 1987-2006 Jeep YJ, TJ Wrangler w/ 4.0L, 4.2L Engines, 1987-2001 XJ Cherokee, MJ Comanche w/ 4.0L Engine, 1972-1986 SJ, J-Series w/ 4.2L Engine, 164 Teeth