Front oil seals 3650 GST4x4

[Big Orange]

Brand new to this site, I have an older 3650 GST 4x4 40 hp
The 2 front oil seals are leaking. I have heard this is common. I am fairly handy with mechanics. I do have the manual although its not real clear. I dont want to pull the front seals and get in over my head. how difficult are these to fix?

 

[North Idaho Wolfman]

What 2 seals are you referring to? Engine, Trans, Front axel?
You do have the service manual? or just the operators manual?

 

[Big Orange]

Sorry, they are the 2 front axle seals where the 2 wheels pivot on the axle it looks like the top one, one on each side.

 

[North Idaho Wolfman]

My 3450 has the same front axle, it's a fairly easy rebuild, the seal is 38440-43530 $21.73 also get the O-ring seal too it's 31353-44130 $4.68.
If it were mine while in there, I would change the 2 bearings also, they are cheap, inside bearing is 08101-06207 $9.27 Outside bearing is 08101-06208 $15.45.

I get most all of my parts here:
http://www.goldeneagledirect.com/index.php
They are great people to work with and have some of the best prices anywhere!

 

[Big Orange]

Thanks for the post, we are in the middle of our 2nd ice storm so might need the tractor, also thanks for the parts place info looks great.

 

[Bluegill]

My 3450 has the same front axle, it's a fairly easy rebuild, the seal is 38440-43530 $21.73 also get the O-ring seal too it's 31353-44130 $4.68.
If it were mine while in there, I would change the 2 bearings also, they are cheap, inside bearing is 08101-06207 $9.27 Outside bearing is 08101-06208 $15.45.

I get most all of my parts here:
http://www.goldeneagledirect.com/index.php
They are great people to work with and have some of the best prices anywhere!

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View attachment 9941

I believe he is talking about where the hub pivots, not the wheel bearing seal? Could be wrong though. If so, this also an easy fix.

 

[Big Orange]

I believe your correct looking in the manual I think they are the hub pivot seals they are leaking at the top.

 

[North Idaho Wolfman]

To do the Pivot hub you will still need to remove the axle hub, so do all the seals while your in there.

 

[Big Orange]

Thanks Wolfman I most likely wont get to this for a little bit but plan on getting the parts ordered.

 

[Billdog350]

I've done several dozen of these seals and the most important tool you can have is a good set of snap ring pliers. Napa sells some ratcheting ones for $75(!) that work mint on the larger snap rings. If you want to save the money, a LARGE set of fixed ones from craftsman will work too. Don't get the ones with the replaceable tips, they will break/bend/move and make the job harder than it should be.

A seal driver and seal remover tool from Harbor freight will make your job easier but isn't essential. You can use a large screwdriver to remove and large block of wood to install worst case.

I have it down to about 1-2hrs per side when working outside on a customers premises.

 

[Big Orange]

Thanks Bulldog I have a nice heated garage to work in so should not be too bad. I just dont want to start it with snow coming as I use it a lot for snow removal. the way we are going right now I will need an ark not a plow LOL I plan on getting all my parts here then giving it a go. Thanks for the input.