Spacer needed with IRS

[Hillibilly Pony]

I have a set of bogart Billet lites and i just ordered ARP studs to lengthen them and i hope one of you guys knows the thickness spacer i need for this rim size. Yeah i got em used...they were on a GT so the IRS makes contact where the solid didnt....


Fronts -15 x 7 with 4" Back Spacing and zero offset
Rears 15 x 10 with 5-1/2 Back spacing and zero offset

 

[Hillibilly Pony]

well...maybe this will get more info...

im hitting the tie rod end on the inside of the rim. i ordered the ARP wheel studs like i said and im thinking maybe a 3/8" spacer would allow them to clear. with a longer 1/2"-20 open lug nut and the longer stud be kosher with hard launches. the actual billet spacers seem to have standard length studs on them and this rim would be WAY out of the fender with some of them