I have a transfer case which I believe is based on the Borg-Warner 13-54 transfer case (see pictures) From my research I believe the Borg-Warner 13-54 transfer case was used from 1983 to 1995 on the Bronco II, Explorers from 91-94 and also possibly on Rangers?

What I want to know is if they ever made a top mode fork in metal and not plastic? Are there any metal forks that are compatible with the 13-54 transfer case? I know the pre 1993 13-56 transfer case on the Bronco had a metal mode fork, but is a fork from the 13-56 case compatible with a 13-54 transfer case? What options do I have if I want a metal mode fork in a 13-54 case?

Here are a few pics of the case / fork:

 

so would that be why my transfer case would pop out of gear and make a bunch of noise like bad grinding noises

 

this is the lind of noise my truck makes and it pops out of gear