Here is a pair of lower hinge covers up for bids on eBay.

1947-1954 CHEVY GMC TRUCK original lower door hinge covers. Pair L&R.

1954 3100 w/Hydra-Matic

"It does not matter how slowly you go as long as you do not stop." and "To know what you know and what you do not know, that is true knowledge." - Confucius