Rather have a 20lb gto spare that I could put on so he can lift the csr on the flat bed or at least get me to the nearest store. Gto spare is 26" tall I think which is only .4 of a inch smallet than my 315/30/18 and 275/35/18

Thanks guy's, I had planned on measuring up a modern GTO spare wheel. What about the modern metric bolt pattern ? Will it bolt up to my factory 5 on 4-3/4" ? As for my brakes, they are factory drum and the rear differential is stock length. Thank you all for the feedback.

Tim john---

Test fit those GTO spares. The center bore is quite often too small and needs to be enlarged.

Don

GTO won't work BUT you could get an adapter I suppose.

When was the last time anyone in this thread got a complete flat ?

I had one with my Corvette that had run flats and it shuddered so bad it was undrivable over 5 mph.

Most flats are due to puncture. If you had a plug kit and a decent compressor that would handle most situations.

5 on 120mm will bolt on and be fine for a spare tire.... You will just need to enlarge the center bore.

Don

4-3/4" = 120.65 mm. As long as you don't mind a small portion of your lug nuts holding your wheel on I guess that's a good strategy. Not particularly good on your studs either. Whatever.

Done all the time. Guys running BMW wheels etc. Should be fine for a spare tire. There is plenty of discussion about this. Google it... There is even a finite element analysis out there.

Don

Are y'all reccomending a full size GTO wheel/tire or the spare tire/wheel (doughnut) that came with the GTO. Please advise. Thank You.

Tim john---