New Member - K20 TCase Question

[654x4]

I picked up a '65 K20 last weekend. It's a low mileage truck just out of service at a fire department. It's very much untouched, drives well and has only 8000 miles. I've really enjoyed it so far... I've wanted one of these for a long time!

Anyway, I have a question regarding repairing a transfer case leak. This truck has a Rockwell T221 divorced transfer case. It is leaking a bit past all 3 shaft seals causing a few small drips on the ground after each drive.

I'd like to fix this myself. Can I do this in the truck? Can anyone provide basic instructions on how to swap the input and output shaft seals?

Thanks in advance!
Matt

[aerotruk63]

Gulp, wow, nice find!
Could really use a pic of how the tow hooks are mounted, and maybe a hundred more of your truck.

Someone here will give you the info your looking for.

[1972RedNeck]

Originally Posted by aerotruk63

Gulp, wow, nice find!
Could really use a pic of how the tow hooks are mounted, and maybe a hundred more of your truck.

That's not an exaggeration either. That thing is amazing.

Would you mind telling us how much you stole it for?

[RANDY COX]

First of all let me wipe all the drool off of me...man oh man oh man.that's one mighty fine lookin rig you got's there,we must absolutely see more pixs...and details what size tires and is it factory lifted.you know the drill...beautiful truck btw..and welcome to the site...

[jdl71]

I'll look at my FSM and see if it has any more pics or info than has already been offered.

But, yeah....nice ride. Wow.

[rideblue00]

Holy Cow, that looks awesome! Welcome

[654x4]

Wow guys!! Thanks for the info and warm welcome.

I attached a couple more pics of the truck and towhooks.

I probably paid more than I should, but when I saw this truck I knew it was the one. I've looked at about a dozen 60-66s over the last few years but hadn't found the one for me. I guess I can't take it with me haha!

So far as I know it's stock height but it makes my 3/4 ton Ram look like a little guy when they're side by side. It has what appear to be the original 750-17 tires on the original split rims. I think I'm going to put those in my attic and run a basic black steel wheel with a modern mud tire since comparable replacement tires will be impossible to come by.

[rideblue00]

OMG...lol look at the interior! Execellent!

[67swb72klb]

thats a .... real nice truck wow
welcome to the site

['63GENIII]

One word...WOW! That thing is beautiful.
As far as the T221, I did the seals on mine. The seals came from Napa including the shift shaft seal. I would take a good look at the area of the yokes that the seals ride on. At 8k miles, there shouldn't be too much wear. If there is, there are sleeves that can be installed to repair any groove in the sealing surface. I would pay close attention to the bearing condition.. Mine were slightly worn from low fluid caused by leaky seals. By the time I repaired the seals, the damage was done. The T221 will not tolerate low oil levels for very long. Other than that, its a pretty good unit.
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[jtrichard]

welcome and what a great find i would say since it came from a fire department that it was inside most of its life and from the pics so far if you gave less than 10 k for it you stole it

[66Gilbert]

A very nice example of a low mile, unmolested 60-66 K20. Congratulations on becoming the new owner. Pretty straight forward on changing out the seals. Drain the fluid, remove drive lines, remove the cotter keys and nuts on the yokes and pull out the yokes. Pry out old seals, clean sealing surfaces, apply a very thin layer of silicon to outside of new seals and carefully install, install speedy sleeves on yokes if there are grooves on the sealing surfaces which I doubt there are. Install yokes back on the shafts and tighten the nuts and install cotter keys. I would do one at a time. Oh by the way make sure you post plenty of pictures from all angles of this Bad Boy in the 60-66 Chevy an GMC 4X4's Gone Wild thread.

[padresag]

at those low miles I also doubt that you will require any speed-sleeves. old age and lack of use more than likely got them. you don't really need to put anything on the outside of the seals. just use something that sits evenly on the seals when you drive them in.
ron

[bmur66]

You Lucky Dog!

[654x4]

Thanks again for the warm welcome and info!

Looks like my local Napa carries the seals (and sleeves if needed) in stock. I'm really glad this isn't too big of a job... The local driveline shop wanted to pull the tcase and go through it for several hundred dollars. I'll be getting on this my next day off!

[Jeff La]

Welcome and yes I'm jealous, but happy they can still be found in that shape