Rear end noise
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New User
Joined: May 2011
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Rear end noise
I just paid my 02 F-150 FX4 lariat supercrew off and decided to get it serviced. One thing I had done was replacing the rear pinion seal and rear differential fluid change. Now, not even 100 miles later I have a vibration while driving and a rubbing sound when turning. Any ideas???
Mountain Pass
Joined: Jan 2005
Posts: 184
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From: Evansville IN
Check the fluid level. Put your truck in park on level ground with the PKB set, remove the key. Crawl under your truck by the rear diff. Look to where the drive shaft is attached to the rear diff. On the front side of the rear end there should be a plug with a square hole just to the 1 O'clock position from the companion flange.
Take a 3/8' drive extension, insert it into the square hole and unscrew the plug. Some fluid should spill out, if it doesn't you need to add some. (I misremember the type, 75w140 synthetic I think..if someone could help me out here....)
Take a 3/8' drive extension, insert it into the square hole and unscrew the plug. Some fluid should spill out, if it doesn't you need to add some. (I misremember the type, 75w140 synthetic I think..if someone could help me out here....)
Senior User
Joined: Jun 2010
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Did you add the little white bottle of friction control to the fluid? If it remember right it takes 3.5 bottles of 75w-140w and one of those little bottles of the friction control. i just did new axel seals so its still fresh in muh mind.
Fleet Mechanic
Joined: Jul 2010
Posts: 1,354
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From: Winnipeg
As BlitZ says they probably didn't add friction modifier to the diff fluid. I had same rub noise and added only 1/2 bottle to start and it solved my problem.
As for vibration if it's been there since the job was done they may have forgot to realign the driveshaft properly when they changed the pinion seal. Crawl underneath to see if they marked the driveshaft to the pinion and got the lines all on the same plain.
As for vibration if it's been there since the job was done they may have forgot to realign the driveshaft properly when they changed the pinion seal. Crawl underneath to see if they marked the driveshaft to the pinion and got the lines all on the same plain.
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Shop reply
I called and spoke with the shop that did the job. He immediately recognized the issues as stated above. He said he needs to add the friction additive. My question to him was if it is so common then why was it not done. He had no reply... He said just bring it in. <?xml:namespace prefix = o ns = "urn:schemas-microsoft-com
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I would not recommend this shop to anyone. Not only did he do this, but he did a transmission flush and front brake job after I told him not too. He then played the pity card saying “well the job was done” so, I should be paid. I argued a bit and he played the “I didn’t think you were that kind of guy.” What a joke…<o></o>
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Anyway, thanks for the input.<o></o>
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> </o>I would not recommend this shop to anyone. Not only did he do this, but he did a transmission flush and front brake job after I told him not too. He then played the pity card saying “well the job was done” so, I should be paid. I argued a bit and he played the “I didn’t think you were that kind of guy.” What a joke…<o
></o><o
> </o>Anyway, thanks for the input.<o
></o>
Mountain Pass
Joined: Jan 2005
Posts: 184
Likes: 0
From: Evansville IN
I called and spoke with the shop that did the job. He immediately recognized the issues as stated above. He said he needs to add the friction additive. My question to him was if it is so common then why was it not done. He had no reply... He said just bring it in. fficeffice" /><O></O>
<O> </O>
I would not recommend this shop to anyone. Not only did he do this, but he did a transmission flush and front brake job after I told him not too. He then played the pity card saying “well the job was done” so, I should be paid. I argued a bit and he played the “I didn’t think you were that kind of guy.” What a joke…<O></O>
<O> </O>
Anyway, thanks for the input.<O></O>
ffice" /><O></O><O
> </O>I would not recommend this shop to anyone. Not only did he do this, but he did a transmission flush and front brake job after I told him not too. He then played the pity card saying “well the job was done” so, I should be paid. I argued a bit and he played the “I didn’t think you were that kind of guy.” What a joke…<O
></O><O
> </O>Anyway, thanks for the input.<O
></O>Sorry to hear you were robbed by that idiot. He didn't deserve a dime from you.
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