how to diagnose the transfer case?

Question

updated recap on the problem: when taking off under mod. to hvy power i get a sound from undernearth that sounds like something is stripping. i have described this as a clicking sound which is why i feel that many people have suggested that the uv joints could be bad. it is not a clicking as would be heard on cv axles in a ft wheel drive. think of maybe like a zip wire for wiring. what it sounds like if you pull it tight really fast. kinda like that but naturally a lot lounder. i can feel it sometimes from underneath my seat. and sometimes it seems as if it is coming from the front wheel. also while driving straight down the hwy. it does not make the strip or click sound but does make a knock or thump mostly between 30-45. i have checked the axles all ok. is there a way do diagnose the transfer case. can i unbolt the front shaft to test it in the drive way to see if it still makes the sound. can the chain be replaced with out complete removal of the transfer case. what are the steps

how could the broken engine mount reflect the sounds i am hearing and feeling......i have only ever heard of a broken mount cause a knock on take off and also getting the fan into the shroud

Answer 1

Have someone hold the brake pedal hard, put it in drive, and give it some gas.

Look to see if the engine is "torqueing" to the right to far.

You may have a broken motor mount alowing the engine to move too far under load.

Answer 2

I assume you were trying to update an earlier question. You didn't, you started a new one.