I have some 10" big wheels I want to run on my 09 xp, and right now I have the scissor relocate done, but with the tunnel sitting lower, I am afraid i will rub my track in the tunnel with the big wheels. I am wondering how the heavy duty springs will work instead of the relocate? Anybody have heavy duty springs with big wheels? What spring part number did you use? I weigh 260 in street clothes.