Mad Dog Racing is selling: New and boxed; AMC Jeep 304-401 true roller timing set with 3-key on Ebay. OK Dynagear went out of business several months ago. They were the only company making a 'street' series TRUE rolling pin chain for the AMC (Cloyes makes a $100+ set). S.A. Gear then bought out Dynagear. Get used to the name S.A. Gear. It's the same stuff as your Dynagear U.S.-made quality in timing. This set fits all 304 343 360 390 401 AMC...think I'll get one....