I sanded them with 320 and them painted.i also used an adhesion promoter before spraying.It is a 2/3, but the spindles definitely dropped it more.I actually have 1 spacer in the front which makes it 1.5 + the spindles which slammed it.Now I need to pull the rears and either remove a spacer or cut the spring.I don't remember if I put the spacer in.Also going to do the free travel mod at the same time and shorten the sway bar links.It rides great for a lowered vehicle but the back needs to drop another .5-1". Even though most people say they like the rake.
07-12 GM Tahoe/Suburban/Yukon 1" or 2" F/3" or 4" W/O Shocks + 2" drop from spindles.Rear can be 3-4 depending on spacer.And I would think the 6.2 added a little weight since all their kits list the 5.3 only.