I have a 2013 sv with 37000 miles I installed a rough country leveling kit a couple weeks ago and reclty I have a slight rattle clunk kinda feels like something is hitting the floor by the wheel wells. It's not a hard or loud clunk kinda soft but annoying. Any idea what it could be seems both sides have it
Sounds like coil bucket contact. With that kit it should be expected in some situations. You can add bump stops to the under side of the UCA to soften the noise or buy aftermarket UCAs to get rid of it.