Wheel backspacing question

[Dan_W]

I am going to run a 3.5" suspension lift with a 1" body lift. The tires I want to run are 305/70/17 which works out to be a 34" X 12" tire. The two kinds of rims are looking at are a 17X9 with a 4-5/8" and a 17X10 with a 4-1/2" backspace. Will either of these work without rubbing? What is he biggest amount of backspacing you can have with this size tire without the tires rubbing? I will have a Dana 44 up front with discs. Thanks

 

[kntr]

I am going to run a 3.5" suspension lift with a 1" body lift. The tires I want to run are 305/70/17 which works out to be a 34" X 12" tire. The two kinds of rims are looking at are a 17X9 with a 4-5/8" and a 17X10 with a 4-1/2" backspace. Will either of these work without rubbing? What is he biggest amount of backspacing you can have with this size tire without the tires rubbing? I will have a Dana 44 up front with discs. Thanks

I run a 17x10 and 305/70/17s with 4" BS and no rubbing. Ive heard a few guys have problems with the 4.5" on the front shock mounts. Do a search

 

[JohnJohn]

Dan,
Kanter helped me on a previous post in the Chat section if you want to check out my post. I think he is running the same set up you want.
I will be running the same setup you are looking at except I am looking at 35" tires.

At this point in my searching I am thinking about getting the rims I want but put spacers behind the wheels. From what I have read even if you found a 9" or 10" wide rim with 3.5 or 3.75 of back spacing (I have not been able to find one) you will have the same concerns as if you ran a spacer.
From my research the concern is the wheels center of gravity being out to far with or without a spacer and it may cause the ball joints to wear out sooner.

I got this information from this site: http://www.4x4review.com/products/suspension/spacers.asp

For me, I want the 17" rim and will deal with the ball joints if they become an issue. I think the only way you could come close is by getting a 17X8 wheel with 4" of backspacing but I don't know if an 8" wide wheel will be an issue for the big tires we are looking at.

 

[kntr]

Look at www.IONALLOY.com

They have some 17x9 and 17x10 with 4" backspacing. If I was going to do it again, I would just save up and get a set of Walker Evans 17x8.5 in a 3.75" BS. I wanted chrome though. I keep my bronco pretty clean so chrome works for me. The Wlaker Evans wheels are polished.

Here is a pic of mine.