Springs With Treaded Bushings
9000 Series, Lonestar and Prostar Conventional - Front
9100, 9200, 9300, 9370, 9400, and 990
9100, 9100i, 9200, 9200i, 9400, and 9400i (1989-2011)
Prostar (2007-16)
Lonestar (2008-22)
Models using springs with threaded (TB-26) bushings
First design springs were used until May 12, 1993