ok heres the deal.... i bought some d window 15X10"... 5 on 4.5.... the guy said its 3.75" back spacing..... what does that mean i need to get.... longer studs or buy back spacers that equal 4".... thats what im confused about iv only seen back spacers 1.25" being sold (spridertrax)... does that mean i need 3 of them for each rim.... that would seem quite alot... and i would need super long studs for the lug nuts...please help... really confused,...

 

I'm a bit confused myself.

Backspacking is basically just how far the tire/rim will stick out from the fender.

You shouldn't need new studs at all.

Why are you using spacers? No spacers needed.

 

You don't need to get anything. Rim backspacing has to do with how far away they sit (from the hub?). If nothing else, those rims will set your tires farther away from stock so you WON'T need to get the wheel spacers. sorry I dont know the correct terminology but I hope this helps

 

so i wont even need wheel spacers.... cuz i literally just ordered my lift... 4.5 r/c it says 4" back spacing recommended... i didn't know how to achieve that..... so i don't need anything.... no wheel spacers or anything... cuz going to run those rims with 33x12.50 tires... didn't kno if that would rub at all... if anyone has same set-up let me know... thanks and studs wouldn't hurt considering they are 20 years old... but if unnecessary i wont

 

U made need spacers so the tires will clear the all suspension parts... Just have to try it and see if they hit at lock steer both ways.. Good Luck!

 

From what I've been told max tire size for that lift without rubbing is a 32x11.50...

You can run 33x12.50 on there 6.5" lift or 35x12.50 with minor trimming.

Actually thats what the website says.

http://roughcountry.com/jeep_xj_4x.html

Wheel Spacers might help with rubbing though

 

Backspace is the measurement from the wheel mount surface to the inside of the wheel edge. The easiest way to measure this is to lay your wheel face down and place a straight edge across the rim and the measurement from the mounting surface straight up to the straight edge is your backspace. That being said, if you are required to have 4" of backspacing and you have 3 1/2", that gives you an additional 1/2" of clearance so no other spacers or wheel studs are required. On a side note, never ever "stack" wheel spacers. It is dangerous and will cause premature bearing failure and severe vibration. Hope this helps.

 

I have a 2000 xj, craiger soft 8's 15 x8 on a RC 4.5 in lift with 32 1150 15s . No issues at all, tire guy said I could run 33 1250s without a problem.

 

sweet deal... thats what i got craiger soft 8" 15x10... and rc 4.5" not installed yet waitin on my tires... next weekend its gettin done... looks good... i shouldnt have a problem then with running 33's and if i do what can i do... i was going to trim fenders and what have you anyways... make it look a lil bigger then it actually is..

 

yes i kno... it also says 4" b.s... i cant get a 32" tire tho... not with the rims i got

 

I just took off the factory flares, haven't trimmed anything.

 

you get the rc 4.5' with aal or full leaf pack?

 

Full leaf packs. Aal is garbage.

 

Wheel spacing is opposite what it seems. Less is more. A rim with 4" back spacing will not stick out as far as a rim with 3.5" back spacing.

 

Hmmm.... A bit harsh I would say...