Should I / What are they Worth?

[Mr70]

In the past,that spare tire has brought $1000.00 or more.(read pre-stock market decline)
That's just the tire,not the rim as that Firestone Wide Oval tire is a 1969 ONLY tire and was never reproduced.They changed that tire in both design lettering and material it was made from beginning with 1970 production.That's the one they reproduce today.

That's a real SS/RS 350.I don't know how much you have in this vehicle,so can't speak for which was you should go,but personally I wouldn't seperate a thing from the car especially the spare tire and XT rims.