I have searched but haven't found what i'm looking for. Pluses and minuses of both I'm looking at either 42" Swampers or 39.5 Boggers or 14.5R20 XL's. I know the XL's are really stiff but what about traction when compared to the others. I run up in the Northwest and get a lot of everything. Mostly I like rocks and a little mud but not mud boggs. It's going on a 78' Bronco with a 60 front and Sterling Rear. As little lift as possible and I don't care about cutting up the fenders. Any thoughts would be great.