You need the mount part that bolts to the frame, it's steel and can usually be found quite easily at a junkyard. Most any of the Ford big block pickups use the same mount.... same thing with the bellhousing, find an older yard and check with them. Bellhousing fitment also depends on what 4 speed you have. If it's the stock one in your '76, be sure to tell them that... Just get on the phone and let your fingers do the parts chasing. Lots of junkyards have web sites, too....