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Message: <blockquote data-quote="stutaeng" data-source="post: 24454" data-attributes="member: 6175">I did upper and lower control arms/bushings on my 06 Suburban 2500 several years ago. Looks similar to your 2500HD suspension. You don't have to unload the torsion bar keys, just remove the anchor though-bolts at the control arms, and they come straight out since the tension is already removed.The bushings were a PIA to remove and install, but it was my first time doing that. I used a ball joint C-clamp to remove the old ones with a bit of heat from a heat gun. To reinstall them, I used a 20 ton press. The bushings themselves are not that expensive IIRC. The LCA are heavy forged pieces, and very spendy to replace, so it makes sense to simply replace the bushings. The UCA is stamped/welded steel. Those bushings are easier to replace, however. If you don't have a press, you can probably take them to a shop for replacement. They may not charge you that much? I've seen some guys say they burn the old ones off, but IDK if that's a good idea to heat the metal to higher temperatures?</blockquote>