Gold Lifetime Member
Join Date: Dec 2005
Location: Battle Ground, WA
Re: How much clearance is enough?
One more source is Budnik's site. They say the following:
"When determining the inner clearance you should keep a few things in mind. On the front you will want to check tie rod ends, brake calipers, and of course full suspension travel. At the rear, your biggest concern on fat tire vehicles is to allow enough room for body roll and tire carcass shift. Generally, the taller the tire (70 series up to Pro Street), the more side wall flex is likely. Also remember that excessive body roll on cornering will reduce inner clearance, (usually 1" to 1 ˝" of clearance is sufficient). Low profile tires, stiffer suspensions, and anti-roll (sway) bars will allow you a bit of extra width."
This seems to be inline with Driverzinc recommendations.