when i did my first set on my 1990 i used the torch and burned out the bushings and then used a die grinder to cut a slot in the metal shell because it was to rusted to tap out with a hammer. i replaced them with polyurethane bushings which come in a 3 piece design. you get two rubber bushing, one inserted in each side of the spring and a sleeve, which fits inside the bushings for the bolt to ride in. if you go to the parts store and dont specify that you want this style you will get another bushing with a steel shell on the outside which will be hard as hell to get in without use of a press. the secong set of bushings i did was on my 94 and i bought the springs brand new from LMC. they came with the pressed in rubber bushings so hte first thing i did was order some new polyurethane ones and used the shops press to remove the original sleeved bushings. you might ask why get rid of new bushings that are perfectly fine but ive learned that when you live in the rust belt things have a tendency to crap out when you least expect it and its easier to remove the 3 piece bushings when the bolt rusts into the sleeve vs trying to remove the bolt sleeve and bushing with metal outershell still attached.