I have a 2004 F150 Super Crew 4X4 with the stock 18 inch rims with the stock 275/65/18's on it. I traded a set of 20 Chevy HD stock Wheels for some 17 inch Ultra Wheels that came of an 04-06 F150. I am looking to put a 2 inch or 2.5 inch Autospring kit on it to level it out but can't decide which one to go with on that. The next thing I want to do is get a set of tires for the 17 inch ultra wheels that are a little bigger than the current one's that I have on the 18 inch wheels. I want the tires to fill out the wheel well better but not throw my speedometer off more than few miles an hour off. Just looking for a meaty look but not to big. Any help would be well appreciated.

Thanks Kevin

 

Need to know the width and backspacing on that wheel first.

 

I'd go with Autospring also. Size is up to you. As for tires, it would help to know the specs on those wheels, but odds are you can use a 33 inch tire like a 285/70-17 (33x11.50) or 305/65-17 (33x12.50).