stock cj7 - I want 33's under her?

[absolutemoon]

Hey Guys, It's me again. I have a simple question if anyone out there can help. I have a 81 CJ7 stock with 31x10.5x15 currently on it. I have already installed 1.5 inch spacers and would like to put 33's on it. Will I have any issues (rubbing on the inside, or if I go over a speed bump) and if not does anyone know how much that will affect my speedometer? Thanks as usual.

 

[William1982CJ7]

I have an 82 CJ7 with 33's. They rubbed the front fenders just a little bit with a 4" lift. My speedo seems to be about 8 Mph off at about 45. So It says I'm doing 45 but I'm really doing about 53.