URGENT! Gas cap for 71 Duster

Hi guys, I filled my car with gas this evening and drove away, leaving the gas cap on my decklid. :banghead: I proceded to drive all over the countryside and when I got home..... no gas cap. I looked everywhere to no avail. Now I need one ASAP.

I would prefer one in very good to excellent condition with the rubber seal in good shape. I believe 71 caps are a one year only cap that are different from other years.

I will pay top dollar for one in excellent shape! Please let me know what you have.

Thanks