Just put the H1 wheels on the truck and was always told that I needed 4 inch spacers to go up front to keep the tierod ends from rubbing the rim. When I look at it it doesn't appear that I need 4 inches, maybe 2 is all I need. I was woundering if anyone else ran spacers and if so what size. Thanks. Heres a pic of the blazer now on 40's.