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rml127 said:
I have a thump type noise in my bronco when I drive slowly over rough terrain. I was looking underneath and found that if I push up on the area where the two ujoints go into the rear of the transfer case the whole section moves up and down. It appears that there is a bushing or something worn in the rear of the transfer case.
Sounds like your tranny mount may be worn. Take a closer look as you push up on the t-case. If you can't find one locally, I got mine from rockauto.com

Also take a close look at the 12pt bolts which connect your d/s flange to the t-case flange. These will back out if not lock-tited and can cause a definite clunking (btdt).

It also sounds like your double cardan may be in need of a rebuild, the centering ball or pin may be worn. The ball can be replaced. If it's the centering pin, you're better off to just get a whole new d/s.
 

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TTB Hater of course
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3,099 Posts

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TTB Hater of course
Joined
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3,099 Posts
rml127 said:
There shouldn't be any slop where the flange comes out of the transfer case should there?
I've sometimes noted 1/16" to 1/8" of fore/aft movement, but there should be no vertical movement, no.
 

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rml127 said:
Can I do this in my garage without pulling the transfer case? It looks like it shouldn't be very hard.
Yes and yes. Just support the tranny or t-case with a jack, unbolt the xmember and swing it down (easy on E4OD models), replace (use loctite!) and reinstall
 
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