Consider the cost and environment damage that would be caused by manufacturing a new one vs just using the same old truck. They probably only but 1000miles on it a year

Can’t kill an old ford. Which engine is it?

There are rumours that the 4litre in-line 6 Ford used to put in their f150s were so reliable decommissioning them was a challenge. People would pour sand and sugar into the gas tank and the engine would just keep running. These engines were made by IH and generally used for farm equipment but you could get them in the pick up truck up until 96