Clunk in transfer case (1 Viewer)

Joined
Jan 25, 2006
Messages
516
Hi guys,

I was driving my 76 fj40 the other day when I noticed a clunk. I was concerned so I limped home.

I got the rear end up on jack stands and chalked the front tires. I started it and put it in 4th gear. I noticed a clunk for every rotation of the output shaft. What do you think is the cause of this clunk? Ive heard of them whining and growling, but not a clunk. The only time it does not do it is when the trany is in neutral. The case has oil in it, and the u joints look and feel good. Im going to drain the case and see if I lost preload on the output nut and the input shaft nut. Any suggestions????

Thanks,
Eric
 
Joined
Jan 26, 2012
Messages
3,751
Location
Ohio, Illinois
Have you checked the driveshaft flanges and see if the bolts are tight ? Also , spin each rear wheel seperately and note if there is any catching or "notch" feeling , broken spider teeth will do the same thing .
Sarge
 
Joined
Oct 21, 2013
Messages
2,038
Location
Naples Florida
It sounds like you have already figured out that you need to look inside the transfer case to identify your source. Do not overlook the tcase housing and mounting bolts first.
 

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