1998xjspt

okay so When I go online to order wheels, different sizes appear. And I'm not sure what each number means, don't want to **** up and order the wrong size so could someone clear up what each number represents? I'm wanting to get some 15' Cragar soft 8 wrapped with KM2's but I'm not sure about the rear spacing, offset or bolt circle. And idk what (8") Is when it says 15"x8". Any help is appreciated, thanks!!

Veyec

15 x 8" means that the rim is 15" in diameter and 8" wide at the inside of the flanges.

Backspacing is measured from the inboard flange to the wheel mounting surface (WMS) The smaller the number, the further the wheel and tire will stick out under the fender.

Bolt circle is usually stated as 5 x 4.5. 5 studs (lug nuts) that are 4.5" apart.

Swirlchaser

Stock wheels are 7" wide and have a 5.25" backspace. The smaller the backspace measurement the further the wheel will come out. If you order a 7" rim with a 4" backspace the wheel will be 1.25" further out than the stock wheel.

1998xjspt

So would 4-1/4 rear spacing be too much or should I just go with 4?..strait up, if I get some 31X10.50R15 km2 and a 3.5 RE lift, what size rim should I get?

Swirlchaser

I think you'd be better off with the 4 to get your front tires away from the lower control arms. That will get you 1.25" out. You can also go with an 8" wheel, that will widen out the tire a bit but it will also get you 2.25" out from stock.

1998xjspt

And offset? I can choose from -13 or +6..? By the way, thanks for all the help guys. I really appreciate it

1998xjspt

Okay nevermind cause; size 15x8, bolt size 5x4-1/2 and rear space 4 wheel only comes with -13 offset. So I guess iv made a choice.

This...http://www.jegs.com/webapp/wcs/store...p:OrderItemAdd

Wraped in this...http://www.4wheelparts.com/Tires/31x...&t_pn=BFG00606

Good choice??

Swirlchaser

Offset and backspacing are the same thing just using a different reference point.

Back Spacking is measured from the back lip of the rim to the mounting surface

Offset is measure from the mounting surface to the center of the rim.

4" backspace or 13mm offset are two ways to repesent the same 8" rim.

1998xjspt

Oh okay thanks bro.

And does anyone recommend a different place where I can get the soft8 & km2 cheaper or a better site??

Swirlchaser

Jeg's has a Soft 8 and D window looking wheels with a 3.75" backspace for $45 a wheel. I just ordered 5, got free shipping, only paid $13.99 handling fee. 5 wheels shipped for $239

1998xjspt

Sweet. From jets I'm getting soft 8 with a 4" backspace for $211...how did you get free shipping?

Swirlchaser

I dunno, when I checked out it didn't charge me shipping just $14 handling. Maybe because I bought their wheels? Throw a set of theirs in the shopping cart and calculate shipping, see what you get.

1998xjspt

Yeah, good stuff so I'll be ordering my wheels from there

Swirlchaser

FedEx dropped the wheels off today. This is what the 3.75 backspace looks like on the XJ.

Power73

looks good!