I rebuilt my SS 1LE fronts (my first time) and it wasn't too difficult. I do have some tips for you if you do your own. Having the service manual pages and this web page helped
https://www.camaro6.com/forums/showt...=571640&page=6. Also got advice from RUQWIKR. Rebuilt using the GM vented pistons and seals, but used RB high temp dust boots. Results are great so far after 2 days at COTA and 2 days on the 3.1 using DTC60s. Don't need the Ti shims anymore either.