Ditto, ditto, ditto, on the factory service manual. The Haynes manual sucks big time for TJ's. Hunt on Ebay for one, you can find them used for relatively cheap. It explains how to do anything and everything and you can decide from there if you're in over your head on a particular project without reaching the 'oh, sh$t' stage. It should be a requirement for anyone working on a TJ. And it would certainly clean up this forum.