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AC5040 Gear Oil Leak
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scratch67 View Drop Down
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Joined: 19 Jun 2020
Location: Georgia
Points: 16 		Post Options Post Options   Thanks (0) Thanks(0)   Quote scratch67 Quote  Post ReplyReply Direct Link To This Post Topic: AC5040 Gear Oil Leak
    Posted: 20 Jun 2020 at 3:21am
Small hole, legs of cotter pin sticking through. Located under the seat, bottom of transfer case.

What’s the purpose/function of this? Why do you think it would be leaking? Whats the fix process?

Thanks for you input.
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DiyDave View Drop Down
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Joined: 11 Sep 2009
Location: Gambrills, MD
Points: 54069 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DiyDave Quote  Post ReplyReply Direct Link To This Post Posted: 20 Jun 2020 at 4:46am
Likely a bad seal somewhere in the dry compartment.  The cotter pin is there to keep a drain clear of bug nests or dirt, you commonly see them in clutch compartments, to let you know when the rear crank seal is bad, on a motor. HTHWink
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Red Bank View Drop Down
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Joined: 18 Apr 2018
Location: Germanton NC
Points: 1051 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Red Bank Quote  Post ReplyReply Direct Link To This Post Posted: 20 Jun 2020 at 9:46am
I believe it’s an axle seal leaking. Mine has been leaking for a while on the left side. I ordered the seal but I haven’t tackled the job yet. In the middle of hay season so I am tipping the hydraulic fluid off and making sure I don’t run it low.
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