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Pinion Shaft Oil Seal
Fits 41-71 Jeep & Willys

Part # 639265

New Pinion Shaft Oil Seal

Application:
Dana 25/27 front
Dana 23/27/41/44/53 rear

New improved neoprene style seal to stop leaks.

Fits:
41-45 MB
41-45 GPW
46-49 CJ-2A
49-53 CJ-3A
53-64 CJ-3B
55-71 CJ-5
50-52 M38
52-71 M38A1
46-64 Truck
46-64 Station Wagon
48-51 Jeepster

Part # Price
639265

$7.99

MSRP:

$7.99

MSRP:

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It seems that I received a different style of seal. There’s a “flange” on one side that I am assuming goes inside the housing? However, I don’t see how the gasket would do any good with this style of seal. Does this seal require the gasket?

Willys Jeep Parts Tech:
They originally used a gasket too. See part number: 636565 with this seal.

What are the dimensions of the Part # 639265 (Front Pinion Seal)?

Willys Jeep Parts Tech:
There are so many dimensions we could take for you. It would be easier if you would give us a call.

does the spring stiffener on the seal rubber go to the inside or out?

Willys Jeep Parts Tech:
Spring goes towards the fluid.

Will this work for a Dana 44 rear axle on a 64 FC-150?

Willys Jeep Parts Tech:
Yes that is correct.

Will this seal work for the transfer case yoke seal as well as on the differential?

Willys Jeep Parts Tech:
No, it would be different. Only fits as listed.

Does installing this seal typically greatly increase the amount of torque required to rotate the yoke? I just installed this last night and never removed any of the shims or bearing. Just cinched up the nut snugly with my impact and now I can't feel any backlash when I rotate the yoke. I'm guessing it's just because the new seal is so tight.

Willys Jeep Parts Tech:
It will be tighter because its a new seal but I would also make sure you are shimmed correctly too.

Does the pinon seal come with a wear sleeve?

Willys Jeep Parts Tech:
It will be just as shown in the image.

I have a 1963 International Scout 80 with a Dana 27 front dff. The original pinion seal had a small thin gasket behind it and the seal body looks nothing like the seals that I'm seeing online. None of the usual scout part places seem to carry the gasket AND seal. Do you know if this gasket and seal will fit my 1963 scout? Thank you.

Willys Jeep Parts Tech:
Sorry we really dont get into Scouts. I would try to find a vintage Scout parts dealer that would be able to help out.
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