Ok so I already have 305 / 35 R24's on my 2006 Dodge Ram 2500 (With out a Lift Kit) , The equivalent to that tire is a 32.4 x 12 R 24.

Do you think 33 x 11.2 R24 Will Fit? Has any one else tried it without a lift kit?

 

A little bit taller, and a little bit narrower.... Shouldn't be a problem.