Sidewall width of 275 DR on 10" wheel

[81cutlass]

Can anyone that has a set of 275/60/15 Drag Radials on a 10" wide wheel get a measurement for me?

I am looking for the overall sidewall to sidewall dimension (with the bulge!). Fattest point you can get.

I have 17X9 5" BS wheels on my 2+2 with 275/40's. I want to pick up a set of 15X10 wheel vintique pontiac ralley wheels for a set of drag radials. My 275's on my 17's clear with about 3/8" to the frame. I have 5 3/4" from axle flange to frame. The wheel vintique 15X10's only have 5" BS and if there is anymore than half an inch of tire bulge past the rim I am either going to need to run a thin shim or custom build a set of 15X9's with like 4.5" BS.

 

[81cutlass]

After further research, it varies.

It looks like 11.8"-12.2", so basically 12", which means its going to need 4-4.5" BS to clear. That correlates to what pretty much everyone else runs on a G body with a 15x10 wheel.

 

[383_GrandPrix]

I have 275/60/15 NITTO NT555Rs on 8" Pontiac wheels and the bulge measures 11". Don't know if that's any help.