With the 3.5" backspace it will push the 10" rim out 2" from where my rim with 5.5" of B.S. is plus the added width of the 10" rim you would be looking at where 2-1/2" on my tape measure. I don't know if the Malibu wheel well is any wider or narrower than my Monte but this will give you an idea.So just the rim or along will be two and a half inches on the tape measure outside the fender well