need a rear window gasket

Where can i buy a rear window gasket for my 74 duster? i already ordered from AutoPartsWarehouse.com and they refunded me after they found they didnt have one in stock. then ordered from yearone and after 4 weeks of no word decided to call. they wont expect them in until the end of the year. great customer service year one. dont really care what it costs. i just need one in stock....