http://www.ebay.com/itm/1972-1976-R...Parts_Accessories&hash=item3ce76e1406&vxp=mtr Saw this on ebay, thought someone may need some of this. Price seems resonable.
Seller states it came out of a '75 but it is a '72/'73 cluster. Seller has pointed out some issues in his series of photos so look carefully if you think you might bid. The speedometer needle is not at zero which means it could just be loose and in need of pressing on the shaft or it could have further damage.