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Unread 07-06-2007, 07:49 AM   #1
M79
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1979 CJ7 
 
Join Date: Jun 2007
Location: Ocala, FL
Posts: 120
leaks

I have a 1979 CJ7.
The rear differential is leaking that smelly fluid steadily from the seal. What replacement seal do I need? is it a Dana 20?

Also the power steering leaks (everyone's does, I know) Is there a seal that's typically faulty?

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Unread 07-06-2007, 08:21 AM   #2
Later_THANKS
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Location: llllll, CA
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rear differential = rear axle.
dana 20 = transfer case .

Which one is leaking?

Post pics will help.

Power steering leaking:
Where? Pump, Gear box or hose?

If it is the steering gear box, I would suggest replacing and the lines. If Pump is leaking I would replace. I have seen people rebuild the gear box but in about 6 months is leaks again.
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Unread 07-06-2007, 08:38 AM   #3
M79
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1979 CJ7 
 
Join Date: Jun 2007
Location: Ocala, FL
Posts: 120
sorry, not very technical..

it's the transfer case that's leaking.
I think the other leak is coming off the P/S gear box.
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Unread 07-06-2007, 08:57 AM   #4
Later_THANKS
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Quote:
Originally Posted by Wookiee_Love
sorry, not very technical..

it's the transfer case that's leaking.
I think the other leak is coming off the P/S gear box.

Hey no problem, we have our weakness and strength.

With a CJ you will soon be a super mech...

Transfer case leak:
If the leak looks like it is coming from the area where the drive shaft connects then you will need to remove the shaft and yoke and replace the seal.

It is a very easy job ( YOU CAN DO IT ). We will help.

I would purchase a seal puller to remove the seal. Makes it alot easier to remove.

Auto parts store will have the seal. I suggest getting a Timken name brand. National Oils seals have leaked on me before.

Also when you remove the yoke inspect for a wore ring around it. If there is a deep worn out ring around it a new seal might not help. You might have to replace the yoke.

Power Steering:
Get some engine degreaser and clean everything up.
Once dried start her up and see if it is coming from a hose or the box.
You could just have a loose hose but if the box is leaking just replace it.

If there are any bolts on the PS hose please only use C-wrenchs. Also spray PB blast on them first and let sit for an hour.

When you are purchasing the seal also gear one of the Haynes repair manual for your vehicle.
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