I’m helping a friend work on his 99 Dakota and we’re stumped. Every time he drive over a bump the truck make a loud squeaking sound. I laid under the truck and had him jump in the bed and the sound seems to be coming from under the cab. When you pull or push on the torsion bars when under the truck the it makes the noise. Is it possible that the torsion bars are to blame? I’ve heard that these trucks had problems with the sway bar end links making noise but the sound seems to be coming from further back in the truck. Thoughts?