Does anyone know the specs on these as far as backspacing and how far apart the lugnuts are and what not?

I really just need to know if i can fit a set of these on the rear for drag tires. http://www.cragar.com/WheelsDetail.asp?id=397

 

45mm BS and 4 1/2 bolt pattern on the stock 05+ Bullitts.
Hope this helps.

 

The offset is +45mm. Not the backspacing. Also the bolt pattern is 5 x 4 1/2".

The back spacing is about 6 1/2". I'm still looking for the exact number though.

My wheels are 18x9 and have a +36mm offset with 6.41" of backspacing if that helps at all. I think the stock wheels on the previous Mustangs were +24mm with 5.85" of bs. The wheels you are looking at are probably made for a car that has numbers closer to those.

EDIT: After doing some quick digging, I think the '05 bs was 6.77". I know the offset was +45mm.