Hey Guys,
I'm out here in Iraq again (3rd time) and im pulling the trigger on Moto Metal 951 Blacks on the 1st... im going with 18x9 on 6x135... im going with a 35in tire.. I need to know more stuff about backspacing on offset... i am completely lost when it comes to these numbers and how it fits on my truck.. 2005 f150 Fx4 ... 2.5level kit... I kinda want the the wheels/tires to sit about a 1inch or a little bit more off the fenders... planning on gettin the rancho 4in in a few months... but I must get this wheel thing figured out first..

Thanks Alot

 

(Rim Width - BS)_NEW - (Rim Width - BS)_OLD = How far it sticks out beyond existing.

Your stocker is a 7.5" rim with a BS of 5.5". So you want a BS of 6" for your new rim to get the 1". BS of 5.71" (like mine) sticks out 1.29".

Stay safe.

 

If you are planning on going with a lift (6") at some time in the future then you should go with no more than 5" bs. On most of the kits 5" is the max bs you can run. On my skyjacker kit 4.5" bs is the most I can run. Kinda sucks bc the first 3 rims I tried to order only came with a 5" bs or more. Ended up with the XD monsters bc of this and they were my 4th choice. If no lift is ever going on then you have a lot more options.

 

Your best bet is to buy the wheels and lift at the same time. just mount the 35's on your OEM wheels for now.

 

So.. say i didnt get a lift kit.. at least in the near future... what offset/backspacing would i go with to acheive 35' on 18x9 on 2.5 level?... im still a little lost on the whole back space / offset and what they mean.. or how people come up with it...

 

You can't fit a 35 with a 9 inch wheel without serious rubbing.

 

Ok well.. were can i get a rancho 4in lift for a decent price?

 

I think this may help you with the latter part of your post..

https://www.rsracing.com/tech-wheel.html

Read the second section titled "How to Measure Wheel Backspace" and ask away with any additional questions you may have, or if you need any clarification.

 

Check 4 wheel parts they usually have good sales