I just recently bought a 2012 Dodge Ram 1500 SLT. I'm planning on putting a 3.5-inch leveling kit in the front and 2 inches in the back. I had a few that I couldn't figure through research on the internet. I would like to put 20-inch wheels on and I was wondering if should do a -45mm offset or if I shouldn't worry about the offset of the rims and just do wheel spacers. I was also wondering what a decent looking tire size is for the 20inch rims that won't require any trimming. Any recommendations would be great, Thanks!