Rear pinion seal
Thread Starter
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Mountain Pass
Joined: Aug 2023
Posts: 103
Likes: 78
From: City of oranges
Rear pinion seal
800 miles from home towing my camper and my rear pinion seal started leaking. It’s not gushing but slinging oil around, do y’all think I can make it home or need no rush into dealership. 2019 f250 6.7l with only 32k and the sterling 10.5. I am kind of at a loss why at such low miles.
Lead Driver
Joined: Jan 2002
Posts: 8,653
Likes: 4,739
From: Itinerant
Get some gear oil and put it in and see how low. Carry a couple extra and get to you hone area to get it taken care of.
I've done that on a big truck, inconvenient but doesn't ruin the gears and get back home.
I've done that on a big truck, inconvenient but doesn't ruin the gears and get back home.
Lead Driver
Joined: Nov 2005
Posts: 8,466
Likes: 4,962
A very small amount of leaked oil will create a huge mess.
You're probably good to make it home, but as said above, fairly easy to add some to the diff, so get a quart and top it off.
Proper level is 1/4" below the fill hole, but since it is leaking then you might just fill to the edge of the fill hole.
You're probably good to make it home, but as said above, fairly easy to add some to the diff, so get a quart and top it off.
Proper level is 1/4" below the fill hole, but since it is leaking then you might just fill to the edge of the fill hole.
Cargo Master
Joined: Jan 2016
Posts: 2,672
Likes: 373
I agree with the above and say to look every time you stop for increased signs of leaking...like big spots on the tail gate or drips on ground. That's not likely a worn seal, something got in it to cause relatively fast failure.
Tuned
Joined: Sep 2019
Posts: 309
Likes: 56
From: Dallas, TX
I had that happen around 130K on my 2017. It looks worse than it actually is. Gear oil spreads a lot more than motor oil.
Definitely do not ignore it. I had mine fixed at 4 Wheel Parts because the dealer was so backed up a couple years ago.
Definitely do not ignore it. I had mine fixed at 4 Wheel Parts because the dealer was so backed up a couple years ago.
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Mountain Pass
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From: City of oranges
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Laughing Gas
Joined: Jul 2011
Posts: 810
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My truck had pinion seal leak last year. Dealer scheduled a week or so out, and had it for couple days to replace the seal. It’s not leaked since but now has gear whine on coast, which is usually a sign of low pinion preload.
For sure keep it topped off and get it fixed, but likely won’t get fixed quick if you just pull into a dealership somewhere.
For sure keep it topped off and get it fixed, but likely won’t get fixed quick if you just pull into a dealership somewhere.
Tuned
Joined: Sep 2019
Posts: 309
Likes: 56
From: Dallas, TX
They probably will have it done in a day but won't be able to actually get you in for a month. In the meantime you can order the parts and give them to the tech to eliminate delays. Likely only need the pinion seal and crush sleeve.
Laughing Gas
Joined: Sep 2017
Posts: 1,136
Likes: 264
From: Southwestern Pa.
Are sure that there was none of this pre-trip? If it were me, while following the check level/fill if needed advice that was already mentioned, I'd get a can of brake cleaner and wash off the oily area as best as possible. Then you might be able to better assess the severity of the leak. Like was already said, a little oil spreads a long way.
More Turbo
Joined: Oct 2023
Posts: 700
Likes: 478
Park the truck on a hill facing downhill so the fluid sits up against the pinion seal and come back in an hour to see if its even dripping. If its just a weep id check fluid level and run it home checking every 50 miles or so just incase. Mine was done under warranty around 5800mi. I waited while they did it as its only a 2 hour job.
Thread Starter
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Mountain Pass
Joined: Aug 2023
Posts: 103
Likes: 78
From: City of oranges
Are sure that there was none of this pre-trip? If it were me, while following the check level/fill if needed advice that was already mentioned, I'd get a can of brake cleaner and wash off the oily area as best as possible. Then you might be able to better assess the severity of the leak. Like was already said, a little oil spreads a long way.
Mountain Pass
Joined: Jul 2012
Posts: 132
Likes: 37
My truck had pinion seal leak last year. Dealer scheduled a week or so out, and had it for couple days to replace the seal. It’s not leaked since but now has gear whine on coast, which is usually a sign of low pinion preload.
For sure keep it topped off and get it fixed, but likely won’t get fixed quick if you just pull into a dealership somewhere.
For sure keep it topped off and get it fixed, but likely won’t get fixed quick if you just pull into a dealership somewhere.
I had my pinion seal replaced, soon as i left the dealer heard the whine when i took my foot of the accelerator. That is the damage to my locker that was discovered by the shop that did my 4.30 gears.
Get the whine taken care of asap.
