12.50 wide on stock dually wheels

[biff101]

Can this be done?? i see the 255/85/16 is about the size I want but all thats out there is the km2. Dont really need that kind of tire. dually wheel is only 6 in wide. I know I would need spacers.

[7.3l-2-6.4l]

Yes a 12.50 wide tire will fit on a stock dually wheel with a 2in spacer in the rear but a 255/85R16 is not a 12.50 wide tire thats actually a 10.00 wide tire and 33 inches tall. The widest tire that I have seen in a 33 is a 295/75R16 and that tire 11.50 wide Thats not to say there is no 33/12.50 but I've never seen one. 295/75R16 is the size I'm currently running and you will still need a spacer if you go that wide.

[biff101]

My question really refers to the rim being 6" wide. Will they really bulge in the middle??? I dont mind running spacers. like the the 315/75/16 is a 34"-12.50 but says it should be mounted on a 7.5 rim..???