Good afternoon...I am currently installing a rc 4" x-series lift kit on a 01 tj. The manufacturer recommends a 33" tire, 15" wheel, 4.75" backspace. I can't seem to find any wheel w/ that backspacing which seems a little too much to me. Any suggestions? Thanks for your help...  

I'm pretty sure 3.5 is the spacing needed for 12.5 wide rubber.  

Hi I am also currently installing the same kit (4"x-series Rough Country) I am also having the wheel backspace problem. Also what did you do about brake lines. Did your kit come with relocation brackets? How about bump stops?  I have a 2000 Wrangler Sport. Any help would be great. thanks  

the 4" should have relocation brackets and bumpstops, the backspacing for 12.5's needs to be no more than 4.5" for a 13.5" you'll want at least 3.5" backspacing. stock rubicon wheels have 5" backspacing, I use them with my 34x12.5-16 trXus m/t's. they have a fair amount of clearance in the rear between the spring pad and the sidewall, I had 315x75-16 maxxis buckshots, they only had about 3/8 of an inch of clearance, they work fine but could be a problem.