This matching set of four GT-40 wheels are from my uncle's estate. They have been in the attic for over 35 years. I was told by a local custom wheel specialist they are aluminum, have been coated with a preservative and should polish up well. Wheels appear true. Casting reads "GT-40 8.000X15". Inside of one wheel marked with grease pencil "Bare wheel 17 1/2 Lbs, Wheel & Hub With Knock Off Spinners 25 Lbs". Wheels only at this point. E mail me marzick@msn.com, with any questions.
Located outside of Detroit.