[Discofunk]

Ok, first off, I'm new to this forum, and even though I've owned my Discovery for a few years now and I'm mechanically inclined when it comes to cars, I've never diagnosed nor have I really done any work to this truck. It's a 1996 Dicovery, automatic trans. As of last week I've been hearing a loud humming noise coming from the front of the truck over 40MPH, it's gotten worse since then. Now I've been experiencing a clacking noise when I would put the truck into reverse for a while now, and the driver side front CV joint has gone on me in the last few days. I was wondering if this was a common issue with these trucks, and also if any of you would know what could be causing this humming. I'm hopeing it's just a drive shaft, or the wheel hub, but I really dont know, and I wanted to get an idea of how complicated is would be to properly diagnose and fix this issue before I go and start taking things apart. Any help you can give me would be greatly appreciated.

 

[Discofunk]

Anyone? I'm hoping it's just a wheel hub or a CV, how common is a broken transfer cases of front diff on these trucks?

 

[OkieRover]

First of all we should remove that hummer from the front of your Rover.

Then we need to find out how you were getting a hummer in your Rover in the first place.







Yeah it's a bearing probably.
That's where I'd start.

 

[Discofunk]

I found a couple of places that sell the whole wheel hub assembly, would that include the bearing, if so I'm just going to order a hub assembly and a CV. anyone else have any input that would help me out?

BTW: Roverland parts had them for sale.

 

[OkieRover]

I'm not sure on Discos.
Seems like a lot to order for a couple of 20$ parts.

 

[Discofunk]

If thats all it is, that'll be a huge releif.

 

[OkieRover]

Does the sound change as you turn?
My experience with bearings tells me that the noise changes as I turned the vehicle.
But again. If it is bearings they are cheap but maybe not too fun to install.
I haven't done mine yet or I'd say more.

 

[DISCO INCUBUS]

Hmmming

I found a couple of places that sell the whole wheel hub assembly, would that include the bearing, if so I'm just going to order a hub assembly and a CV. anyone else have any input that would help me out?

BTW: Roverland parts had them for sale.

I would check and make sure there is oil in the diff & in the swivel housing's
first.

If you need wheel bearings you don't have to replace the hub unless it is scored & F***** up. New hub is expensive. You have to drive out the bearing
races with a hammer and brass punch or bring the hub assembly to a shop to
press them out .

Bearings are cheap. Try this place www.rockauto.com


Good luck

 

[Bene]

sounds like a U joint to me. they're a pretty common problem on these trucks if you donk hit them with a grease gun once in a while.

 

[Discofunk]

I'm going to look into all of those things in the next couple of days, what gear fluid should I use in the diff, and should I go with synthetic?

 

[champ69]

here it is EP 90 gear oil/hypoid (smelly/thicker than oil)