AWD Transfer Case Leak

yar02169

Member
Joined
Apr 12, 2012
Posts
40
Well, I had thought my transfer case had a slight leak at the housing seam, as that was always the wet area. Hit it with a sandpaper pad on the grinder, then covered that with some JB Weld. Filled the xfer case, and I still had a drip or two at the seam. Gave it a wipe and took it for a short ride, came back and there's a drip hanging from the xfer case, at the seam. Looking further, I can see it's not from the seam, but it's coming from further up. As I continued to look, I was thinking it was going to be coming from the overflow tube. Nope. Moving into position to look at the tube, I noticed where the fluid is coming from. Judging from the pictures attached, my transfer case is going to need to be replaced.

My plan is to slap some more JB Weld there, just to close things up and keep the fluid inside. My question is this: Is there a chance of a total failure that will make the truck un-drivable? Can the darn thing 'explode' and destroy itself and leave me motionless on the road? The AWD isn't working now, but the plan is to drive it through the winter so that the convertible can stay in the garage where it belongs.

JB Weld did the trick, and keeps the fluid inside where it should be. The latest is that the truck soon developed a shudder. Going around 30 MPH, it had a 'feeling', let off the gas and coast and it went away, as soon as gas was applied again, the shudder was back. In Neutral while rolling, all was OK, just when power was applied. Third day of driving and the shudder got worse, so the truck has been parked, and I've resorted to driving the convertible in snow for the first time (over 7 years).
Found a transfer case with encoder motor intact for $200 which is now in my possession and waiting for nicer weather.

I mistakenly posted at the old site (darn bookmarks), got crap for replies. I copied and re-posted here

I'll be swapping out my transfer case when the weather gets better, no point lying on my back in single-digit temps. Some basic course of action steps, but any helpful tips would be appreciated.

A. Will be done on the driveway, back-end up on ramps and front on jack-stands.
B. A floor jack will be useful in lowering out the old unit, my hope is that it will also help in getting the replacement lined up correctly.
C. The replacement unit currently has the encoder motor attached. I'm thinking to leave sleeping dogs lie, and only swap it if for some reason I need to.
D. This unit also has fluid in it, which I will leave in it until it's job time, at which point I'll drain it and the fill it after the reinstall.

Overall, it doesn't seem to be a tricky job; a few bolts on drive shafts and their removal, 5/6 bolts on the transfer case. Out and in in what, an hour? I can dream anyway. I'll probably spend an hour before then spraying all the rusted bolts in hopes they actually break free when torque is applied.

When the old unit is out,I may run new emergency brake cables, one side let go from the equalizer at the hand-brake handle a few years ago. When I found the slice in the xfer housing case, I could see (but not reach) the e-brake cables, and one definitely looks shorter that the other. My guess is a seized cable in the protective cover, with worn (fully adjusted) e-brake pads. It's always something on this thing....
 

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Wow! Take that thing apart and post some pics when it is off of there if you don't mind. I'm curious to see what happened inside to cause that damage.
 
That is the end plan, gotta separate the metals to get the most from the scrap yard, curiosity will also be a motivator. Pics to share, just because.
 
Yep, it self-destructed. The chain was broken, as well as these other parts.
 

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