Here's another question about the tire size.
From what I'm seeing, a 305/55/20 is 33.2"x12", and a 295/60/20 is 33.9"x11.6". Looks like yours are a bit wider, but not as tall.
Stockers are 265/60/20, which work out to be 32.5"x10.4".
With the 295s, I'd be going up about 1.5" and 1" wider.