For 2007-18 Silverado Sierra 2-4" Lift Kit Grey Aluminum Upper Control Arms UCA

2007-2014 Silverado 1500 2WD 4WD 6-lug wheel only. 2014-2018 Silverado 1500 New Body 2WD 4WD 6-lug wheel only (only fit OE forged /casting steel arm). 2007-2014 Sierra 1500 2WD 4WD 6-lug wheel only. 2014-2018 Sierra 1500 New Body 2WD 4WD 6-lug wheel only (only fit OE forged /casting steel arm).