Clunk in driveline

[Dickinson County Comanche]

Hey all. Whenever I shift gear normally now in my Comanche, it makes a very audible clunk/knock. If I baby it, no clunk, no knock, nothing. It also makes this knock if I wind the engine up and accelerate then coast. It is not the u joints of any kind, the front nor rear ones, nor do I believe it is the transmission mount as I just replaced it. I was thinking transfer case chain slap but it doesn’t seem to have a ton of play to suggest it. The input shaft on the transmission did seem to have some play but it was not extreme. transmission and transfer case are from a 1993 Jeep Cherokee. AX-15, NP231. It still retains the original internal clutch setup.

[Dickinson County Comanche]

The rear axle does not seem to have an extraordinary amount of play either. I never noticed this before I swapped it, not in the Cherokee, nor in the Comanche with the BA10/5. Clutch and flywheel were also torqued to spec and don’t seem to be lose as it sounds just fine when starting and the clutch seems a-ok. Both transfer case and transmission have the proper amount and type of fluid.