has anyone tried running 8" rims instead of the stock 7" i am considering running 15 x 8's on a 96 XLT. mostly looking for something to fill out the wheel wells a little better and also better handling on the road (lots of winding roads here). i have les schwab (kelly) wild country 30 x 9.5 tires that i love. any suggestions or expereience would be great. thanks.