yeah, well got a call from the shop about noon today and that $320 turned into $450 because he initially thought he was just replacing the strut ASSEMBLY, not disassembling it to swap out the shock. I have no idea how that little detail got overlooked but he said it added about half an hour per side. I can see 30 minutes to compress the spring, disassemble it, swap out the shock, get everything back into place and reinstall it. But an hour per side just to get the strut assembly out? I'd actually originally planned to pull them out myself and bring them into the shop but decided I didn't want to kill a weekend and be without my truck so figured I'd have them do it and eat the labor costs (we have tons of things to do around the house every weekend so time is precious). Maybe it's more complicated than I imagined. It's not anything I've ever done before and I don't have a fancy lift or air tools so I'm sure it would have taken me awhile to do but in hind sight, to save $200 in labor I should have just dove in! I'm really anxious to see how different the ride quality is. I'm also glad I decided to do the rears myself. That should be easy. Turned out to be a pretty expensive front end level, but at least the shocks are much higher quality (and adjustable) and hopefully the CV angles are closer to stock than they would be with a spacer. After I absorb this bill, my next adventure will be bigger tires (and I can start following another gm-trucks thread)!