ok ive looked a lot at this site and need help deciding.. I have a 2008 f150 4x4 I will be using a 2.5 leveling kit and a 1.5 add a leaf
Im looking at 17x9 and 18x9's with a Backspace = 4.75 in and Offset = -6mm for both wheels
as for tires its 315/70/17 or 305/70/18
any help would be great and any suggestions
as far as i know this will work

thanks much everyone

 

With those wheel specs, you are gonna need to stick with 33's. If you want to fit 35's you need to find a 8 inch wide wheel with 5.5 inches of backspacing.

 

Agreed, I am run the setup with 35's, 8" wide wheel with 5.5" of backspacing. If your looking at any wheel that is nine inches with 4.75" of bs you will need to stick with the 33's.

 

ok thanks guys ill go with 8 wide and 5.5 bs on 35's
offset = any?

 

I too am Installing a 2.5" or 3" leveling kit with add a leaf rear on my Black 2009 f150 4x4 STX. I am looking a buying Mamba M2's. They come in 17 x 8 w/5.5" B.S. or 18 x 9 w/6" B.S. I would like to run 35x12.5's but will accept 33x12.50's. Which wheel size and tire size will look the best on my truck. I do not want people to tell me my wheels stick out to far. Please help, because I'm doing a internet purchase and the tires will be already mounted when shipped to me. It is hard to send back wheels that have already had tires mount on them!

 

Offset and Backspace are two different ways of measuring the same thing on a wheel. If you know one, you can calculate the other. For an 8 inch wide wheel with 5.5 inches of backspace the formula for offet is as follows:

8 + 1 = 9 / 2 = 4.5 inch of backspace with 0 offset

4.5 inch of BS is the centerline of an 8 inch wheel. (0 Offset)

5.5 BS - 4.5 BS = +1 inch

25.4 mm = 1 inch, so +25 mm of offset for the wheels you want.

KR-Texas

 

will a 8 wide with 4.5 in bs work on 35's for my truck
im trying to get 35's for my truck and cant find a rim in all black with the 8 wide and 5.5 bs everyone is telling me to work with 35's
thanks everyone

 

Thanks KR-Texas, Your information was a big help. Buying wheels for 95 f150 back in 95 was a lot easier than buying wheels for my 2009. Too many sizes, offsets, and bolt patterns to deal with. By the way, nice truck you have there. Thanks again.

 

I have +18 offset on my 8" wide wheels they stick out about 1.25" farther than stock

 

Slash36g, Try looking at rimzoneonline.com. They have just about every kind of wheels you can think of.

 

thanks ill do that

 

Yea I got my wheels there, they are very cheap for almost all there wheels. The only brand I noticed they dont have is pro comp but free shipping is also great.

 

I have a 5.71" backspace / +18 offset, its perfect

 

would that work for 35's Darren

 

No.