Eyes hurt from searching, need backspacing for 15x8 draglites for year

[fallenauthority]

EDIT, title shouldve said REAR not year.
I have searched and searched and searched more, only to find conflicting results. I have an 06 GT, I am putting 15x4s on the front and want 15x8s on the rear. I know the rear swaybar has to be relocated, however I have seen people say that for 15x8s you need 5.5" and ive seen some say 6.5" and even another person said 7.5"! Im so confused, and I would be highly P-Oed if I bought wheels that wouldnt fit. I need someone who has done this to give solid input. I want to know ANYTHING that needs to be done to make this work. IE: lugs, spacers, studs, backspacing, etc. Thanks in advance, like I said I tried searching but only got conflicting results.

 

['08GTcaRED]

Actually I think a huge problem as well is your brakes... I think Darkfire has smaller draglites and hopefully some clarification on this as well, but I just wanted to throw that out there as well. Sorry if that throws a monkey wrench into things again

 

[fallenauthority]

Well I know the swaybar needs to be relocated and i know the brake calipers need to be shaved down a bit, and I read a 3/8 spacer is needed on the front with 15x4s. Now I need to know what backspacing is needed for 15x8 rears and if a spacer is needed with it. Also if extended lugs are needed.

 

[RICVA05]

Well I know the swaybar needs to be relocated and i know the brake calipers need to be shaved down a bit, and I read a 3/8 spacer is needed on the front with 15x4s. Now I need to know what backspacing is needed for 15x8 rears and if a spacer is needed with it. Also if extended lugs are needed.

I have 15x10 Weld rt series rims on the back and 15x4 on the front and did not have to shave off nothing on the calipers or even need spacers.

 

[NotQuik]

good luck with draglites as my prostars would not even fit over the rear calipers. I kept the front prostars adn run a 1/2" spacer and that's fine but if you want a cheaper alternative over bogarts or something try jeg stars 15x8 with 5.5" backspacing and no relocation bracket nor spacer are required in the rear.

EDIT: PM sent

 

[fallenauthority]

I guess I should have clarified, I am using the jegs stars front and rear. Good to know no modification is necessary for the rear. I appreciate the help.