Need help with a transfer case issue

[DALTON]

I have an '87 K10 with a 350, 700R4 and I believe a NP208 TC. I am experiencing what seems to be slippage in the chain when in 2WD. I hear a grinding when driving then when the chain does catch, it feels as if I just got rear-ended! I have never ripped into one of these. Is rebuilding one of these a big project or is it something a weekend warrior could handle? Any tips would be greatly appreciated.

Bob

 

[Hogback Fabrication]

You're sure its the t-case and not the rear end?

If its the t-case find a used one and throw it in (they're a dime a dozen).

 

[DALTON]

You're sure its the t-case and not the rear end?

If its the t-case find a used one and throw it in (they're a dime a dozen).

I am not 100% on the TC. It is the only thing I can think of that would react the way it is. It started last winter when I would pull it out of 4WD and go with 2. I would get a chugging type of reaction upon accelerating and it would go away once I got over 35mph. Then when i would slow to a stop, I would get the chugging again and the big bang at the stop. This afternoon it started doing it again only this time it hasn't been in 4WD right before.

 

[resurrected_jimmy]

First, welcome to CK5!

This symptom does sound similar to some other NP 208/241 failures I have heard of. 38377k5 is right, geting another 208 is probably the easiest, cheapest way to go.

Its an easy check to pull the rear diff cover and have a look and eliminate it as a possibility as well.

In answer to your original question, rebuilding a 208 is not hard and can be done by a weekend wrencher.

 

[Hogback Fabrication]

Pull the rear diff cover and make sure a bunch of parts/metal don't fall out. You might not notice a blown up rear end in 4WD.

If its not the rear end its the t-case.

 

[DALTON]

Thanks for the help guys. Any recommendations on who to go to for a remfg. 208?

 

[Hogback Fabrication]

Thanks for the help guys. Any recommendations on who to go to for a remfg. 208?

A rebuild kit or a remanufactured case?

As for a used case, watch craigslist.

 

[Texas Jimmy]

Thanks for the help guys. Any recommendations on who to go to for a remfg. 208?

www.nationaldrivetrain.com They ship from Atl and Chi.


You can get bearing/seal kit, chain for about $200. If it's gotten bad enough to slip the chain, you may need a range fork. If you buy a used TC, you may be buying someone else's problem. Do it yourself and you know what you've got. I did my 241 in a couple hours at a leisurely non-pro mechanic pace, bench pressed it in and out. weighs about 80lbs. Quality snap ring pliers, wooden tap dowel, patience and a six pack.


Colorado K5....Built not Bought.