Confused about wheels backspacing/bolt pattern

[aalberini]

Just bought a stock 1999 xj and need some help figuring out the wheel/tire combo!! (for a snow tire setup)

Here's what I want: http://www.americanracing.com/wheelSpecs/1945/10/4323/ar172-baja
(in satin black). So what's the deal with the back spacing? XJs are supposed to be 4 right? So if it's not lifted, and I get 3.76 b/s will they hit the fenders?

Also want to pair the rims with these tires- are 235/75R15 the right size for 15x8 rims?
http://www.tirerack.com/tires/tires.jsp?tireMake=Bridgestone&tireModel=Blizzak+DM-V2&partnum=375R5DMV2XL&vehicleSearch=true&fromCompare1=yes&autoMake=Jeep&autoYear=1999&autoModel=Cherokee%20Classic&autoModClar=


Thanks in advance!

[4.3LXJ]

If you are not lifting and wanting not to hit, then the most back spacing you can get is the ticket. Those tires with that wheel would do OK I think. It is only on full stuff in the rear that you would have a problem, if any. But 3.75 I think would be OK