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F150 Rear End Problems

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Old Mar 25, 2015 | 09:37 AM
  #1  
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F150 Rear End Problems

I recently put new tires on my F150 and began hearing a sort of whining noise. I just thought it was the tires so I didnt look any further. Then the noise got worse and I have now figured out it is in the rear differential. I have never worked on the rear end of a truck or any other vehicle so I am not sure I can do this job myself. I am also afraid if I drive it any further to someone to fix it I could cause even more damage. Is this something I could do myself or should I let a mechanic do it?
 
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Old Mar 25, 2015 | 10:12 AM
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Originally Posted by steveg5.0
I recently put new tires on my F150 and began hearing a sort of whining noise. I just thought it was the tires so I didnt look any further. Then the noise got worse and I have now figured out it is in the rear differential. I have never worked on the rear end of a truck or any other vehicle so I am not sure I can do this job myself. I am also afraid if I drive it any further to someone to fix it I could cause even more damage. Is this something I could do myself or should I let a mechanic do it?

As it's still under warranty I would call your dealer..
 
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Old Mar 25, 2015 | 10:23 AM
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Originally Posted by rmccbride
As it's still under warranty I would call your dealer..
x2 exactly. It's not even a question.
 
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Old Mar 25, 2015 | 07:14 PM
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I wouldn't dream of going near the diff on a truck under warranty. That sounds expensive. How many miles do you have on it? Makes you wonder if the fluid level was correct to begin with. If it has been run low on fluid I would insist on new bearings as well as the ring and pinion.
 
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Old Mar 25, 2015 | 09:30 PM
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after its rebuilt put regular 80w90 or 75w90 back in. never have to rebuild it again.
 
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Old Mar 25, 2015 | 10:10 PM
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I think he posted in wrong section......according to his profile he has a '96......maybe a moderator can move his thread for him
 
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Old Mar 28, 2015 | 10:41 AM
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My truck is a 1996 F-150
 
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Old Mar 28, 2015 | 10:46 AM
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I keep reading different posts and articles and people say different things about doing this job. I really dont have the money to take my truck to a mechanic so I need to do this if I can. I really dont know what to do but I have to get my truck fixed ASAP!
 
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Old Mar 28, 2015 | 11:14 AM
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Originally Posted by steveg5.0
I keep reading different posts and articles and people say different things about doing this job. I really dont have the money to take my truck to a mechanic so I need to do this if I can. I really dont know what to do but I have to get my truck fixed ASAP!
As you posted your problem on the 2015 thread it caused a lot of confusion. Might be better if you moved over to the right year thread. I'm sure you will get better answers there.

But have you at least checked the fluid level?
 
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Old Mar 28, 2015 | 02:55 PM
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Originally Posted by steveg5.0
I keep reading different posts and articles and people say different things about doing this job. I really dont have the money to take my truck to a mechanic so I need to do this if I can. I really dont know what to do but I have to get my truck fixed ASAP!
If you need it done ASAP you might be better off taking it somewhere. You can do it yourself but if not done right it could be toast in 1k miles. Pinion bearing preload and ring mesh is important. Plenty of info on the web but you really need to do some research to do it right, time consuming.

When my Ranger rear diff went I pulled the axle assembly, tore it down, purchased new parts and took all it to local guy, then reinstalled myself. I supplied all new parts, he charged only labor for rebuilding, about $350. Might be an option to minimize labor paid out.

There is a subsection here that includes axles, maybe ask for info here:
Clutch, Transmission, Differential, Axle & Transfer Case - Ford Truck Enthusiasts Forums
 
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Old Mar 30, 2015 | 05:30 AM
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Moved to 1987 - 1996 F150 & Larger F-Series Trucks forum.
 
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Old Mar 30, 2015 | 06:51 AM
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Quickest,easiest and probably cheapest fix is to get a used rear end and swap them out. Is your truck 4x4?
 
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Old Apr 4, 2015 | 09:22 PM
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^^^^ X2

A PO of my '87 had 4.10s put in it. Rather than spend $1200 to have it regard (been there, done that, don't want to talk about it ) I spent $140 for a pick-n-pull rear and swapped it back to 3.55s. Just be picky and make sure you have the right ratio in the donor axle and you'll be good to go.
 
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