This may be the most complete answer I have ever read on MTBR.:thumbsup:mtnbiker72 said:289-Rebound damping adjustment, STKM steel stanchions, bushings not serviceable
302-Rebound damping adjustment, Turn Key compression damping lockout, STKM steel stanchions, bushings not serviceable
318-Rebound damping adjustment, Motion Control compression damper with lockout, 4130 Cro-Mo taperwall stanchions, bushings ARE serviceable.