Transfer case going bad?

[HighPerformanceTrucks]

My transmission failed again recently and while removing the transfer case I noticed the fluid is a metallic grey after only 2500 miles or so. Anyone know how to diagnose the transfer case for possible failure?

The output shafts rotate at the same frequency as the input shaft when I turn it by hand. I haven't been able to completely separate the casing yet, but I peeked inside and all seems to be okay. No hard parts or metal chunks falling out.

Any way to diagnose to see if the viscous coupler is going south? I have about 102K miles on the transfer case.

I would like to make sure the transfer case is okay, before I reinstall it after I fix my transmission.

Any help is appreciated.

Adam

 

[92Ty#1524]

How old is the fluid in the transfer case?

 

[jwaller]

I ran into the same issue with a xcase recently. it lasted about 500 miles after we flushed the case 2x. then it started to make horrible noises and we pulled it to find it totally destroyed itself.

wasnt that a roadmaster tranny?

 

[HighPerformanceTrucks]

How old is the fluid in the transfer case?

The fluid is only 2500 miles old.

One thing to note hear is I had used Redline MTL instead of the Redline Dexron. I was out of Dexron and had extra bottles of the MTL and contacted an engineer at Redline before installing the fluid. He told me MTL would be perfectly okay as a substitute, but I wonder if he MTL possibly is the wrong fluid.

 

[HighPerformanceTrucks]

I ran into the same issue with a xcase recently. it lasted about 500 miles after we flushed the case 2x. then it started to make horrible noises and we pulled it to find it totally destroyed itself.

wasnt that a roadmaster tranny?

What actually got destroyed inside the transfer case? What did you have to replace or did you just install a junkyard used transfer case?

No it wasn't a roadmaster tranny.

Adam