I want to change out my 33's and go to 35's. I really did not have any significant speedo issues with the 33's, but I believe I will with the 35's. Any other issues that I should be aware of by making his change. This is on a lifted 2011 Rubi Unlimited.

 

You might want to gusset up your front axle C's. Sleeves would be nice, too, but the gussets are best done early on before your C's start to bend.

 

An AEV Procal will fix your speedo...among other things. I would throw in a spare tire carrier to in addition to what Mark D. said about the C-gussets. You may want to trim your pinch seam and Rubi rails 1"-2" as well as your 35's will be close.