1985 dodge pickup tailgate handle inside needs to be repaired. Help please

I have an 1987 RAM D150. The tailgate worked fine at first and then one afternoon while hunting I made the mistake of slamming the gate shut, one handed, (gun in other) while holding the passenger end of the gate. I dont know if I twisted something or what cause I had to release it with a screwdriver useing the release at the catch instead of the handle as it would not function. It will function now but only with great effort. When I smallmed the gate the passenger side closed but the driver side did not and the torsion seems to have damaged something. I have an 1987 RAM D150. The tailgate worked fine at first and then one afternoon while hunting I made the mistake of slamming the gate shut, one handed, (gun in other) while holding the passenger end of the gate. I dont know if I twisted something or what cause I had to release it with a screwdriver useing the release at the catch instead of the handle as it would not function. It will function now but only with great effort. When I smallmed the gate the passenger side closed but the driver side did not and the torsion seems to have damaged something.

i have a part inside that holds a hook plastic thing i cant find anywhere in store or internet web ssite they allways go different subject like a tailgate net or new tailgate i have a part inside that holds a hook plastic thing i cant find anywhere in store or internet web ssite they allways go different subject like a tailgate net or new tailgate