I got one at AMD two years ago. The 73 is a little different from 74,75,76. The 73 didn't have the 5 mph bumper shocks, there is two small indentions on the 74 thru 76 at the bottom .they are there so the face of the shock on the bumper to be hit and not damage the taillight panel. The 74 thru 76 uses different bumpers as well,they are about 4 inches longer so that a plastic bumper filler can be added. AMD said they have very little call for 73 thru 76 twilight panels and make limited runs. There's a place my friend got a used one from Desert Auto Parts on Arizona, it was $375 shipped, hope this helps.if you can find a 74 /76 you can weld a small piece where the slots are for the shocks to let the bumper move