Am looking to upgrade to 33" tires on my 95 f150. The problem is I don't know what rim size I need. specifically in the back spacing/ offset. I am putting a 3 inch perf acc body lift on it before I get the rims and tires.

 

16in rims with the same back spacing should be fine since you have a body lift going on... others might chime in and have contrary remarks... Offroad 4x4 forum might have more oppinions if your not getting them here. Beware though they will probably chastize you for a body lift instead of a suspension lift...

 

This is funny. Lol. Cause my sugesstion is if you only want 33's, why not do a 2" suspension lift in the front (also called a leveling kit). With the 3" body you will have plenty of room for 35's.

Also I would just get a 15" rim (cheaper tires).

How wide are your tires goin to be, 10.5 or 12.5?

 

Unless you're going with something over 12" wide, I wouldn't even worry about changing wheels. Even if you decide to go with a little wider wheel, maybe a 10", I doubt you need any backspacing.

4wheelpartswholesalers, (not sure what they go by now) used to have a chart of "what hits and what fits" on thier site.

IMO, don't use any offset unless you absolutely have to!

 

I run 35*12.5*R15. on 15*8 Dick Cepek DC-2 rims.

My rims are:
Offset: -21mm , Backspacing: 3.70" , Bolt Pattern: 5-139

I wanted to run the stock rims but couldn't since my tires a 12.5 wide, and ford factory wheels are 7" wide

 

To clear some things up. I am staying with a 15inch rim. The tires I want to put on are Big O XT's 33x12.5x15. I just want to make sure I will not be hitting anything when I make turns. That is my main concern with what offset/ Back specing I might need. Thanks for the help so far.

 

I'd recommend a 15x10" wheel with 3.5"-3.75" backspace.