Wheel/Tire backspacing reqiured??

[99ABTJ]

My '99 TJ has 15" x 6" wheels. The new wheel's I want to put on are 15 x 7. I want to put on 31 x 10.5 BF's. The wheel's have an option to come with a 6mm backspace. Is this reqiured for this tire/wheel combo. I don't have a lift as yet, I plan to get a coil spacer/ levelling (2") installed shortly after.

Thank's for any feedback,

 

[Bounty__Hunter]

6mm backspacing isn't enough, and doesn't sound correct for most jeep wheels.

 

[Itchee96]

You dont have to lift a TJ to put 31's on it. Are they the factory wheels?

 

[99ABTJ]

The 15 x 7 wheels are not factory, the 15 x 6 that are on now are factory though. The wheels I want don't come in 15 x 6, so I was wondering if there is anything I need to consider if I go to this new size.

 

[volaredon]

I have 15X8s on my '97, with 31s and NO LIFT.

 

[99ABTJ]

Volaredon, do your wheels have spacer's or backspacing?

 

[Bounty__Hunter]

Most all wheels have backspacing, and it's often measured in inches by jeepers and millimeters by wheel manufacturers. Stock wheels run around 5.25" backspacing, while many aftermarket wheels have 3.5"-4" of backspacing so the tire sticks out a little farther, while giving a wider and more stable track width.