Rear End Problems
Thread Starter
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Fleet Mechanic
Joined: Apr 2015
Posts: 1,641
Likes: 507
From: Phelan CA
More bad news, took it back because pinion seal failed. Oil slung everywhere.
If Ford wants to play baseball, i'll play. Two strikes so far. Third and I'm done.
I think I'd like just another axle and a months payment for the time out of service.
If Ford wants to play baseball, i'll play. Two strikes so far. Third and I'm done.
I think I'd like just another axle and a months payment for the time out of service.
Tuned
Joined: Aug 2017
Posts: 299
Likes: 31
From: SW Utah
Sorry to hear that. Could simply be a defective pinion seal OTB? At least it’s a fairly simply and easy procedure to replace. I believe it’s possible to do the job without needing a new crush sleeve as long as the number of threads exposed out of the nut are counted and number of turns pinion nut takes to come off.
Thread Starter
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Fleet Mechanic
Joined: Apr 2015
Posts: 1,641
Likes: 507
From: Phelan CA
My truck was built Sept 21 2017, so pretty much the same time. I'd listen very closely on a test drive.
Thread Starter
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Fleet Mechanic
Joined: Apr 2015
Posts: 1,641
Likes: 507
From: Phelan CA
Yes, this truck is primarily a service contractor rig, so it doesn't tow much, just heavy bed loads. First trailer of any kind was well after 2000 miles.
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Thread Starter
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Fleet Mechanic
Joined: Apr 2015
Posts: 1,641
Likes: 507
From: Phelan CA
As said before, I'd really like a drop in axle, complete, hub to hub.
Thread Starter
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Fleet Mechanic
Joined: Apr 2015
Posts: 1,641
Likes: 507
From: Phelan CA
Sorry to hear that. Could simply be a defective pinion seal OTB? At least it’s a fairly simply and easy procedure to replace. I believe it’s possible to do the job without needing a new crush sleeve as long as the number of threads exposed out of the nut are counted and number of turns pinion nut takes to come off.
Tuned
Joined: Aug 2017
Posts: 299
Likes: 31
From: SW Utah
1. Bad seal (new in box)
2. Improper installation, not enough oil/grease on seal lip as yoke installed.
3. Foreign debris inside housing from previous damage or excessive dirt allowed to enter housing and not flushed out before rear ended was setup.
4. Pinion preload was improperly set up and r inion nut. Backed off and allowed lateral movement that wiped out the seals surface.
5. Wrong seal altogether
Cargo Master
Joined: Jan 2017
Posts: 2,243
Likes: 555
That's a good idea if I'm doing this repair at home, but I'm not going to accept short cuts in procedure from Ford. I'll expect a new crush sleeve, new seal, and possibly new bearings if the oil level dropped. I also expect the truck underbelly to be steam cleaned with detergent to remove the oil.
As said before, I'd really like a drop in axle, complete, hub to hub.
As said before, I'd really like a drop in axle, complete, hub to hub.
look in the service manual and see what the seal replacement procedure is. this will tell you what parts will get replaced. if your axle is anything like the aam, you will get a new seal and new nut. nothing more and nothing less. now if they didnt get the pinion preload correct previously, then perhaps a new sleeve will be warranted. alot of variables play into it
either way, i think you have better chance of winning lotto than getting new axle assembly
Tuned
Joined: Aug 2017
Posts: 299
Likes: 31
From: SW Utah
i cant see them replacing anything but the seal unless some components were damaged from the previous rebuild, thus causing the seal to leak. then again, the tech, and i use the word tech loosely, may not of had the correct seal installer tool so he used a make shift tool. it wouldnt be the first time.
look in the service manual and see what the seal replacement procedure is. this will tell you what parts will get replaced. if your axle is anything like the aam, you will get a new seal and new nut. nothing more and nothing less. now if they didnt get the pinion preload correct previously, then perhaps a new sleeve will be warranted. alot of variables play into it
either way, i think you have better chance of winning lotto than getting new axle assembly
look in the service manual and see what the seal replacement procedure is. this will tell you what parts will get replaced. if your axle is anything like the aam, you will get a new seal and new nut. nothing more and nothing less. now if they didnt get the pinion preload correct previously, then perhaps a new sleeve will be warranted. alot of variables play into it
either way, i think you have better chance of winning lotto than getting new axle assembly
Tuned
Joined: Aug 2017
Posts: 299
Likes: 31
From: SW Utah
i cant see them replacing anything but the seal unless some components were damaged from the previous rebuild, thus causing the seal to leak. then again, the tech, and i use the word tech loosely, may not of had the correct seal installer tool so he used a make shift tool. it wouldnt be the first time.
look in the service manual and see what the seal replacement procedure is. this will tell you what parts will get replaced. if your axle is anything like the aam, you will get a new seal and new nut. nothing more and nothing less. now if they didnt get the pinion preload correct previously, then perhaps a new sleeve will be warranted. alot of variables play into it
either way, i think you have better chance of winning lotto than getting new axle assembly
look in the service manual and see what the seal replacement procedure is. this will tell you what parts will get replaced. if your axle is anything like the aam, you will get a new seal and new nut. nothing more and nothing less. now if they didnt get the pinion preload correct previously, then perhaps a new sleeve will be warranted. alot of variables play into it
either way, i think you have better chance of winning lotto than getting new axle assembly
Thread Starter
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Fleet Mechanic
Joined: Apr 2015
Posts: 1,641
Likes: 507
From: Phelan CA
Update again, tech states oil is blowing out of the breather tube, and not the pinion seal leaking. I don't see this as good news either.
Even the tech is stumped why it's doing this, so he took pictures and sent them to Ford engineering, and I assume they will contact Dana.
I have a feeling something got hot to boil the oil. When I initially touched the case, that was mild city driving, and not off the freeway. I assume the tech did use the proper non detergent gear oil, based on the service record.
Just glad I held on to my 2006 with 300K miles on it. Looks like Ford is going to get me another rental though.
Even the tech is stumped why it's doing this, so he took pictures and sent them to Ford engineering, and I assume they will contact Dana.
I have a feeling something got hot to boil the oil. When I initially touched the case, that was mild city driving, and not off the freeway. I assume the tech did use the proper non detergent gear oil, based on the service record.
Just glad I held on to my 2006 with 300K miles on it. Looks like Ford is going to get me another rental though.