Backspacing question - Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > JK Jeep Wrangler Forum > JK General Discussion Forum

Join Wrangler Forum Today

Thread Tools

Please support our sponsors and let them know you heard about them on
Old 05-24-2013, 08:46 AM   #1
ameration's Avatar
Join Date: May 2013
Posts: 204
Backspacing question

I have been told that almost any lift over 2.5" requires a wheel with 4.5 or less of backspacing. I am looking at getting a set of the Pro Comp 7031's in 17" which have a backspacing of 4.75. So if I am thinking correctly, I will need to get wheel spacers to use this wheel on a lift that is over 2.5" or no spacers if I go with a 2.5" lift, correct?


ameration is offline   Quote
Old 05-24-2013, 08:53 AM   #2
chuckr's Avatar
Join Date: Jun 2012
Location: Westminster, CO
Posts: 336
I have the Rugged Ridge wheels which are 17x9 with a 4.75 BS that I'm running with an RK 2.5". I don't use spacers and I have no rubbing issues. RK lifts always give more height than advertised, and I ended up with about 3 ~ 3.5".
Hope that helps....

chuckr is offline   Quote
Old 05-24-2013, 10:28 PM   #3
New Jeep's Avatar
Join Date: Jun 2012
Location: San Francisco Bay Area
Posts: 232
I am running Pro Comp 17 inch wheels with the 4.75 back spacing. I have a 3.5 inch lift and 35x12.5 wheels. No problems. AEV runs wheels that are a little over 5 inches of back space and that works too. The 4.5 inch or less may be an old rule of thumb. No worries, you will be fine.
New Jeep is offline   Quote
Old 05-24-2013, 10:43 PM   #4
Join Date: Sep 2012
Location: Northern BC
Posts: 320
It is actually the tire width that you need to consider... not the lift. If you are going to run 315/70s/17 (12.5 wide), then you need at least 5.25" backspacing for clearance. Factory is 6.5", so the typical 1.5" spacer gives you 5" with factory wheels and you are good to go.

If you go with the 4.75" backspacing wheels you are just going to end up with a Jeep that has a 1/2 inch wider stance than spacers... and going to 4.5" would again give you another 1/2 of track... and the ability to run an even wider tire if that is what you wanted.
BeyondYourFrontDoor is offline   Quote
Old 05-25-2013, 01:07 PM   #5
ameration's Avatar
Join Date: May 2013
Posts: 204
OK, I'm thinking for going with the Zone 3" Lift with Nitro shocks and was sold by the seller that I would need wheels with 4.5 or less of backspacing. So if this is the case, then I need to get spacers if I want to use the Pro Comp 7031's (4.75 backspacing), correct?

2010 JK Unlimited Sahara
MB 72 Wheels with 33x12.50R15 Duratracs
Teraflex 2" Leveling Kit

ameration is offline   Quote

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Download our Mobile App

» Featured Product

All times are GMT -5. The time now is 02:36 AM.

User Alert System provided by Advanced User Tagging v3.1.0 (Pro) - vBulletin Mods & Addons Copyright © 2015 DragonByte Technologies Ltd.

Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC. is not in any way associated with the Chrysler Motors LLC