[Factory Guy]

Ok Here's what you run into if you opt for the hidden hood latch (year 1977 truck option). The 1977 center radiator support is on the right, and with all those curves would require cutting up the grill if you want to use the early Squarebody grills.

The Center Radiator support for a 1973 is on the left so I took the 77 hood latch/catch mechanism out and just grafted the hood latch mechanism into the back of the 1973 center radiator support, it has both bolts and screws holding it into place (still have to figure out the secondary hood safety catch mechanism).