A little advice please.
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Lead Driver
Joined: Jul 2003
Posts: 7,404
Likes: 52
From: Wheatland, Mo
A little advice please.
OK So for about the last 3-4 weeks, my truck has started to make a slight rhythmic humming noise from the front end as I increase speeds. The rhythm increases with the speed too. I am assuming that this is the front bearings, so I am looking at replacing them since the truck is at almost 120K. I am also wanting to change out the diff fluids front and rear, tranny and t-case fluids. My questions are;
1 - Front bearings sound right? Any other input? I know it isn't the tires making the sound.
2 - what type of fluids should I use? I know that Fords are very particular and the last thing I need to do is repair or replace a diff, t-case or tranny.
Any tips or tricks to doing the work I want to do? Anything to make it easier other then taking it to a shop;. They want $600+ to do the work.
Thanks all!
1 - Front bearings sound right? Any other input? I know it isn't the tires making the sound.
2 - what type of fluids should I use? I know that Fords are very particular and the last thing I need to do is repair or replace a diff, t-case or tranny.
Any tips or tricks to doing the work I want to do? Anything to make it easier other then taking it to a shop;. They want $600+ to do the work.
Thanks all!
Hotshot
Joined: Aug 2002
Posts: 12,679
Likes: 15
From: BC, Canada
Front wheel bearings that are shot will normally be louder when turning slightly one way or the other.
Are your tires feathered at all? You can try swapping front to back and see if the noise changes at all. It's pretty easy to be fooled by tire noise.
The front diff uses 80W90 and it doesn't seem to make a big difference what brand you use as long as it's a good quality oil.
The rear diff uses 75W140 synthetic. Again use a good oil. I like Motorcraft. If you have limited slip make sure you add friction modifier to it.
Since I work at a dealer I always use Motorcraft transmission oil too. The transmission takes Mercon V and the transfer case takes normal Mercon.
Are your tires feathered at all? You can try swapping front to back and see if the noise changes at all. It's pretty easy to be fooled by tire noise.
The front diff uses 80W90 and it doesn't seem to make a big difference what brand you use as long as it's a good quality oil.
The rear diff uses 75W140 synthetic. Again use a good oil. I like Motorcraft. If you have limited slip make sure you add friction modifier to it.
Since I work at a dealer I always use Motorcraft transmission oil too. The transmission takes Mercon V and the transfer case takes normal Mercon.
Senior User
Joined: Nov 2006
Posts: 252
Likes: 0
the noise you are hearing is wheel bearing related. is yours 4x4 or 2wd? personally I think the 4x4 is just as easy, its not as greasy.
and do what racerguy said about the fluids, you can do it yourself. I might reccommend using a gasket, rather than liquid gasket maker. couple bucks more, but its a sure thing.
and do what racerguy said about the fluids, you can do it yourself. I might reccommend using a gasket, rather than liquid gasket maker. couple bucks more, but its a sure thing.
Thread Starter
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Lead Driver
Joined: Jul 2003
Posts: 7,404
Likes: 52
From: Wheatland, Mo
Racerguy you hit it right on. They do tend to quiet down a little when turning to the right.
Hawk...It is a 4x4.
Thanks for all the info! That is exactly what I needed. Now to hit the dealer...
Hawk...It is a 4x4.
Thanks for all the info! That is exactly what I needed. Now to hit the dealer...
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