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Another 5 Speed Question - Input Seal


evanb

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I'm trying to redo the seals on my getrag 245. Everywhere I look suggests the input seal on the top, but the seal that came out is way smaller on the bottom. The new seal doesn't even come close to fitting. What have I done wrong? post-45185-13807654311622_thumb.jpg

Sorry got the picture backward. Old seal is on top, new seal is in bottom.

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Take a close look at the old seal, somewhere on it it should have the seal dimensions in mm--inner diameter, outer diameter, and thickness in that order. Sometimes the numbers are on the front of the seal, other times they are on the angled part of the seal lip. Use a magnifying glass and good light if at first you don't see them, or just measure the seal. Then search seal suppliers for that dimension (if someone here does not post that part number first).

 

--Fred '69 & '74tii

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Ok guys thanks for the responses BUT:

The seal that came out is chewed up and half the number is gone. Maybe you can make it out here:

post-45185-13809331099504_thumb.jpg

As for the seal number suggested, I'm pretty sure that's the one I got that doesn't fit (the picture matches anyway), not to mention the dimensions seem to be off: the seal I pulled out is only about 35mm on the outside:

post-45185-13809332225074_thumb.jpg

Maybe I'm trying to put this seal in the wrong spot? Maybe I have to find a way to force it in (it seems impossible though). I'm at a loss. Any other help would be appreciated.

Old seal

post-45185-13809333027251_thumb.jpg

New seal

post-45185-13809333253165_thumb.jpg

Size difference

post-45185-13809333403837_thumb.jpg

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Did you order the correct seal for the transmission?  

 

5-speed Getrag 245 uses input seal # 23111228314 30 x 42 x 7mm  (to 9/82)

 

4-speed Getrag 242 uses input seal # 23121204211  30x48x10mm and paper gasket # 23121222354

 

(4 speed content below)

To me the input seal is a real chore to remove.  It would not come out even using an Eastwood seal puller (hook tool). I had to use a screwdriver and mallet to pry the old input seal out of the collar.

IMG_9135_zpsa9f12cb5.jpg

 

 

 

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Ya I figured it out right after posting. The rubber had all worn away so there was just a metal ring left, I thought it was part of the housing.

Some liquid wrench and a hammer and screwdriver later, it was out. Thanks guys.

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4-speed Getrag 242 uses input seal # 23121204211  30x48x10mm and paper gasket # 23121222354

 

To me the input seal is a real chore to remove.  It would not come out even using an Eastwood seal puller (hook tool). I had to use a screwdriver and mallet to pry the old input seal out of the collar.

 

It just so happens I am replacing the input shaft seal on my 4-speed right now. Mallet and a screwdriver got the old one right out. However that paper gasket is now $25 or so. Since the 5-spd does not use it anyway, I am planning to leave out the gasket and use Permatex Ultra-gray sealant instead. I will use it sparingly around the upper cutout. Anyone see a problem with that? Should I go buy some gasket material and make a gasket instead?

 

BTW, PO had installed the seal backwards, likely easier to press in that way. Perhaps that is why it was leaking.

 

Fred '69 & '74tii

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