15x 8 backspace ? Welds

[Blkt6]

I searched alot of previous threads and still wasn't sure. Im going to order Weld RTS wheels for the rear. Im leaning towards 275/60/15 DR. Apparently 4" backspace is perfect but Weld only offers 3.5" or 4.5".
Do I go 3.5" or 4.5"?
Thanks

 

[Machran]

Mine are 3.5

 

[dave82]

Same here, 3.5 inch backspace on Weld draglites. Still fit nicely within the wheel wells.

 

[dave82]

May want to also verify the offset for that particular style. I know the fronts (15X7) on mine are -12mm and I believe they are -25mm on the rear (15X8) but not positive.
Not sure about fitment with 4.5 inch backspace but maybe others that have this will comment.

 

[Grumpy]

We used 4 1/2" with a 1/4 " spacer. 3 1/2s we had to roll the fender. BUT our cars are special