Gonna test my luck and see if anybody has a spare tire sitting around? New/old, it doesn't matter. I just want to use it for mock up so I can measure out wheel specs for my car.

 

I have 295 ?? 18's that I ran on Vette wheels on the rear of my car.

 

... so where are you going with that thought?

 

295 35 18's yours if you're interested.

 

Thank you for the offer. I already bought tires for this year. I will probably look at new sizes next year.

 

I had 285/35/18 - 18x10.5 all the way around and just put some 285/40/18's on the rear.
Any measurements I can get for you?
The 35's bolted on no issues, the 40's required breaking out some metal bending tools

 

That is exactly what I was wondering.

Your wheel specs would be a helpful reference point. Thanks.

 

Stock 84 rear end with discs.
18x10.5 z06 wheels 58 offset
2" spacers
+7 effective offset with spacers.
~6" backspacing with spacers.
285/40/18 goodyear eagle f1 supercar tires.
Tires barely clear bumpstops at full droop but never hit.
Fenders needed to be rolled mildly with a baseball bat to keep from cutting the tire . I took the rear springs out to check for clearance.

If you modified your bumpstop a 1/4" and pushed the wheels in a 1/4" there would be no problem with the fenders but you would need to whack 2 spots in the inner fender for clearance. No free lunch