Which backspace for a 15x8 weld prostar??

[Grumpy]

we run the 4 1/2 backspace with a 1/4" spacer with MT 275/60/15s ... we have 1/2" x 3" wheel studs to me 3 1/2 puts the tire to close to the fender .. to each there own

 

[PaCemkr86]

15x8 with 28x9
3.5 here.. i wish i had more tuckage...

 

[Grumpy]

15x8 with 28x9
3.5 here.. i wish i had more tuckage...

we did try them ... Melissa would drive the car because they stuck out to much