I'm continuing the restoration of my 1974 Dodge Power Wagon today with the teardown of a divorced NP205 transfer case. Roll pin punch set: amzn.to/3OaD5ju
The one night I go to bed early and a new Yoshi vid drops. Needle bearings make me shiver. Whomever came up with caged needle bearings should receive a Nobel Prize.
Your noise is from driveshaft deflexion, the cross member on the frames of them old truck frames could have been bent towards the rear, you may want winch the entire transfer case forward towards the front of the truck, this can be accomplished by simply wrapping a chain around the frame and cross member then winch the entire unit forward. You may want to secure the back of the truck to something solid to prevent the truck from rolling, also remove your driveshafts. Run your cable from a tow truck snach blocked off the back of a tow truck under the engine bay past your transmission to the lowest point of your transfer case which is chained hook to cable and winch forward to 35 clock position. The transfer case is not your problem. You're problem will be solved! With this method your chatter noise will be eliminated.
This one went pretty smooth. Once I dropped a load of needle bearings on the floor, but the camera wasn't running. Another time I put the shift shaft in but not through the shift fork. I didn't realize it immediately, so didn't swear much about it.
I had a 69 ford sitting on 85 frame with the divorced 205 transfer case it was 3/4 great truck had 390 engine and I bought a wrecked state patrol car that had a 428 hp motor that had 28k so new motor and man that was big hp motor .