WIth the ladderbars therer eare 2 ways to go you can keep the leafs & use floaters or you can eliminate the leafs , use coil overs , with coil overs you will need to use a diagonal link & you need to install a proper upper mount for the coilovers to mount to , the rear weight wil be approx 1400 lbs depending what you sue for a fuel tank & if the batterys are mounted in the rear , max tire size is approx 13" wide without the leafs & with stock frame rails