04 Silverado Transfer Case

[metalfingers]

So, I have a 2004 silverado 2500HD crew cab 6.0L 4X4 auto trans, manual shift transfer case.

 

found my transfer case lost all its fluid & tore some stuff up. I took it to a reputable transmission shop for a rebuild. After putting it back together there was a growling sound that he wasn't satisfied with. He took it apart again & inspected everything & couldn't find the problem.

 

It's now back together and I'm driving it, 4WD is working, but here's the symptoms:

 

slight ticking/grinding sound in 2H, gets louder in 4H (seems to be resonating up through the floor shifter)

 

Now, the N & 4L positions on the transfer case is where things get hairy. While the truck is idling in neutral, trying to shift the transfer case into N is about impossible, it grinds like crazy. Turn the ignition off & the grinding will stop & allow you to shift between N & 4L but it does take some finagling. It seems that none of the transfer case shifting, although working, is nearly as smooth as it used to be. Hopefully I explained it well enough, sorry for the long read. Thanks for any & all help!!!

[brainpause]

Take it back. They didn't do something right.

 

Larry

[BrockwayMT]

It can't grind going into neutral, there is nothing to grind on. They messed something up with shift system.

[8.1HD/ALLISON]

Sounds like a problem with the shift synchronizer. +1 on taking it back and get it fixed. If they can't fix it, have them take it to the dealer and have them pay the bill.

[metalfingers]

It can't grind going into neutral, there is nothing to grind on. They messed something up with shift system.

 

 

weird, because it does. it started doing this right before i took it in for repair. I guess I thought it was all part

of the same problem.

 

The noise while driving seems to be getting quieter, any chance it's fixing itself? haha

 

I also found if I do the shifting between 4L & N while the tranny's in neutral, at a slow roll, under 3mph (per manual)

I don't have the grinding, or not nearly as bad anyway. So maybe it is a synchronizer issue?

 

Like I said, this guy is pretty reputable & he's willing to fix it, just thought I'd try to pinpoint the culprit before I take it back, it sucks being without a truck.