Message: How hard is it to install a 2/2 DJM lowering kit. I called this sport truck shop near my house and they quoted me $629 for the kit and about $450 to install it. It includes lower control arms, front coils, shocks, shackles, blocks, and bumpstops I believe. Just wondering if I could pull this off in my driveway or is it worth the $450. Oh, this is on a 2002 R/T CC.