pastric

Greetings everyone! I have a '79 620 King Cab with disc brakes and some lower control arm bushings that are kicking my ass! Got the old ones out using an air hammer. A hammer bit quickly takes care of the inner sleeve and rubber bushing. A chisel bit slices through the outer sleeve fairly quickly but some finesse is needed to prevent damage to the bore. Finesse and air hammer are admittedly a bit oxymoronic. The hacksaw method is probably the way to go, although it surely takes longer. Anyway, my problem is installing the new ones. It requires so much force that it destroys the bushing before it's fully in the bore. Any one have experience with this? Here's what I've done so far: The Haynes manual says to use a "suitable socket and a hammer". DO NOT under any circumstances use a "suitable socket and a hammer" to install lower control arm bushings. Complete destruction of the bushing will result! I made a "puller" out of a threaded stud, pipe fittings, nuts and washers, to pull/press the bushing into the bore, but the results were the same: Too much force destroyed bushing. I've tried heating the frame but rubber bushings can only take so much heat. One thing I have yet to try: Heating the frame and freezing the bushings. I don't hold out much hope for this method since the metal casing around the bushing is so thin, it would heat up rather quickly once coming into contact with the hot frame. Any ideas?