what is the largest tire i can run on 05 2 wheel drive duelly with out going to spacers.just installed 3.42 gears love them!!!!!!

 

From what I have read, a 265 E series is about as big as you can go without a spacer, from 285 on up you are going to need one, esp if you tow alot/heavy.

 

you can run the factory micheline tires off of the 3/4 ton trucks. I believe they are the 265/70-17. They are the same height, but a wider foot print. Usually you can pick up the factory take-offs for about $100.00 each, alot cheaper than buying another quality brand from a tire store.