weld prostar backspacing

Robuilt

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OK, ive done my research trolling internet boards and have not come to a solid conclusion.

I own a 97 GT and want to buy a set of 15X10 Prostars. What backspacing will be a good fit.

Ive heard a 5.5 and 6.5"

Now remember, 94-98 axles are 29 31/32"s (almost 30"s) while 99-04 are 30 11/16" (almost 31"s).


anyone with a 94-98 running these wheels? what is your backspacing?
 

97stanger

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I have been told that with 15x10 welds in the rear you will not be able to run aftermarket exhaust, and that you will have to dump...just a heads up. I've always been told

15x8 - 5.5 bs
15x10 - 6.5 bs
 

jfor441

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blown97stanger said:
I have been told that with 15x10 welds in the rear you will not be able to run aftermarket exhaust, and that you will have to dump...just a heads up. I've always been told

15x8 - 5.5 bs
15x10 - 6.5 bs

Not sure if mine counts as aftermarket exhaust as I have weld in Flows.
 

MustangMatt96GT

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blown97stanger said:
I have been told that with 15x10 welds in the rear you will not be able to run aftermarket exhaust, and that you will have to dump...just a heads up. I've always been told

15x8 - 5.5 bs
15x10 - 6.5 bs

I had exhaust on my car with 10s and 6.5 BS no problems. didnt even have to take the quad shocks off...
 

97stanger

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okay than sorry for the wrong info. Ive been told that before by a different forum, but wasn't sure if it was true.
 

330CubeGt

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blown97stanger said:
I have been told that with 15x10 welds in the rear you will not be able to run aftermarket exhaust, and that you will have to dump...just a heads up. I've always been told

15x8 - 5.5 bs
15x10 - 6.5 bs

+1
 

bobtsgt

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6.5 will tuck them in nicely. I will be running 5.5s to bring them out to the edge of the fender more. But if the car squats too much then there might be a problem.
 

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