Need to Pull drive wheel and replace Bearings

[PP]

I totally agree with the prior post. I've had lots of wheel seals go in many vehicles, only a few did I have bearings go and then the wheel seals were the precursor. If you don't have oil soaking into your brake drums or running down between the tires, you might not have a bearing problem at all. I'd get the wheels in the air and spin them, try rocking them, try pushing them in and out and see if you have much play. Hopefully it's just a rock someplace that it  shouldn't be. Will

[luvrbus]

  don't count the old drop box out either it will send all kinds of messages to the drivers side on a Eagle or MCI

[Seangie]

don't count the old drop box out either it will send all kinds of messages to the drivers side on a Eagle or MCI

Cliff - It would be my rookie assumption that the noise from the drop box would vary with the shifting of gears and the noise I'm hearing is consistent with the rpm of the tires regardless of the gear I'm in.  Let me know if I'm wrong.  The more info I have to figure this out the better. 

Thanks.

-Sean

Fulltiming somewhere in the USA
1984 Eagle 10S
www.herdofturtles.org

[luvrbus]

Are you saying it just at a certain rpm of the tire,most of the time on bad wheel bearings if one applies a little brake pressure while moving the sound will change not always but 99.5% of the time it will.

Really 20 degrees hotter on 1 side is nothing that could be from tire pressure , brakes or the sun on that side.

It not a big deal changing the bearings it is just nasty and heavy jack the baby up and spin the wheels you will feel it if the bearings are bad,99% of the time the seal will go first you may have caught it time before the seal went.You need to get the bad boy jacked up and narrow it down IMO, Mark needs a trip to MT If I was closer I would help in a heart beat this AZ heat is killing me  ::)MT sounds so good.Check the drive shaft going into the drop box if you can move the yoke up and down the input shaft bearing is going out

good luck

[rusty]

Check the inside dual as it will make the same noise if it is broke. It  happen to a friend this spring.

Wayne

[lvmci]

Is this the most incredible way to get and give help, thru the exchange of information! Tom...

[bevans6]

The drop box is after the transmission and runs at driveshaft speed, 1:1 ratio down to the pinion gear in the diff.  So it runs at 3.7 times (or whatever the diff ratio is) times wheel rotation speed at all times.  As soon as you get the wheels in the air  and the axles out just give them a spin, you should be able to feel or hear a grumble.  Put a six foot pry bar under the tire and lift up, you'll see if it moves.  Any movement at all (like over 1/8th inch at the tire tread) means you need to at least inspect and adjust.   One thing is that if the bearings are loose you get the movement but sometimes they spin smooth as silk.  You need to adjust them to minimum/tight clearance and spin them to catch a slightly worn out bearing.

Edit: I know this is about identical to other earlier and perfectly correct advice, I just wanted to point out about the drop box varying directly with road speed, and that if a bearing is loose it can spin smooth, so you have to adjust out the loose (and ask why did it loosen in the first place) and then spin again... 

You know what makes me laugh every single time?  Aside from the air brakes the whole bearing/hub/ axle is virtually identical to the setup in my 1961 MG Midget...  If you know how to work on that the stuff in a bus hub will not surprise you one bit, you just need bigger tools...

Brian