Stone guard replacement

[Cbled56]

Need help in re-installation of the plate that goes under the crank pulley. Not sure what it's called but it looks like it protects the crank, air pump, alt, and fan pulley's. I removed it when I tore the truck down and do not remember how it goes back on. I'm have a feeling it should have been installed before I put the radiator back on. I have already re-installed the front end and have been trying to install the plate from under the truck with no luck. This plate has a small door on it. Not sure what you are suppose to service or inspect with the door opened. Any and all help is very much appreciated.
Thanks in advance.

 

[Dizzy]

Two studs under the radiator /fan shroud frame-the bottom ones with canvass, and two screws on the insides of the frame. Mine was installed directly against the truck's frame and the canvass straps were between it and the radiator support. The bib was removed from my '75 40.

 

[Cbled56]

That's what I thought, or at least what I was hoping it wasn't going to be. Thank you very much for your reply. Looks like I get to tear it down again. This time I will write down my disassembly steps so I can reverse order when I assemble it back together.