I have a 1996 GMC Sierra and the part the grill connects to on bottom is broken,...

[Kaleb]

...what's it called? It's a plastic part that goes behind the bumper, the grill bolts on at the top then connects to that piece and that piece bolts onto the body. Any clues?

 

[Allen W]

Lower filler panel?

 

[rejectedzipper]

Front fascia trim ?

 

[bigboro718]

you can get it at c/k resto or lmc trucks online