I was wanting to fit 33-35in tires with 18in wheels, how much of a body lift should i get? to clear them without cutting or trimming

 

You may have to do some test fitting at the tire shop. As in putting one assembly on and the lowering the car down.p and checking clearance. I would say at least a 5" lift for 33-35s. The 33s should fit with the 5", and the 35s might be a little tight.

 

I think max on the body lift is 3". Beyond that, and things start getting too interesting for liability purposes.

Not much in the way of lifts for 4x2s' though.... 33's should be easy with 3" body lift. 35's will like rub in places, especially when the suspension compresses.

If you have 3.55 gears in the rear diff, you will HATE 35's......

What weight rating is your truck? If you have a 2500/3500, you could probably fit 33's with NO lift.

 

Whoops, didn't see that word. Yeah 3" is good on the body. I was saying a 5" for suspension.

 

What amount of backspacing? May have to check the clearance of mechanicals as well.