Rear Diff Whine?

[grelise]

Thanks guys for the ideas, i'll take them in and go from there

[grelise]

Ok, so I'm changing the RH rear bearings, got as far as taking the castle nut and caliper off.
How does one then proceed taking the disc off.
Yes the handbrake is off. I have tried tapping the edges while pulling the disc. The drive shaft moves freely also.
Any ideas?

[grelise]

Got the disc off, have undone the 4 bolts holding the bearings. Is it now supposed to slide off or is there another bolt?
Looking in the service manual suggest it has only the 4 bolts then just slide off hub and bearing together.

[Madmagna]

You often need a puller as they will be fairly tight to remove

[ADM]

I had what I thought was diff whine in mine around the 60-80kph. Did the oil change thing, no change. Then a mate said it might be the tyres. I had Bridgestone Grid 2"s with approx 12,000k on them. Swapped the rears from the mates AWD Verada which were near new Dunlops, took it for a spin, no noise.
Put new tyres on it, all good.
Woth a try.

The first time I ever noticed any diff whine was when I upgraded my wheels & tyres back in '08. The whine is noticeable just on 100kph on throttle, it hasn't gotten any worse & it's not particularly intrusive, so I don't worry about it.
With the exception of my beloved TJ1.5 magna exec, I have driven rear wheel drive cars most of my life so I'm somewhat used to having some diff whine.

I change the diff & transfer case fluids every 2 years which amounts to around every 20,000 - 24,000 kms.