Rear differential whine?

[rowhard]

Joe, I'll be honest, it could be as simple as a backlash adjustment that you can eliminate with shimming. BUT, it takes special tools for measuring and knowing what the heck your doing. Yes, any mechanic with the training, tools and spec's could do it, just finding one that would do it. Most just want to replace something, not repair it. And yes that is the name we call it. The British I believe call the ring gear a crown gear, can't remember what the call the pinion gear off hand. If you have the workshop manual downloaded into your home computer, it starts on page 334

[Joe Isuzu]

Thanks as always rowhard. Now, I'll be honest. There ain't no way I'm messing with this thing myself
Shoot, this is one of the few parts on a car I have no idea where it's located. I'm certainly now going to try and fiddle with it solo. Appreciate the encouragement but the tranny job was enough for me for the time being.
I will have to deal with the TOD fluid change though sometime this month. I did everything else it seems except that one.
OK, let's see how things go with the Isuzu place. The last time I had them check for the roar the mechanic said he didn't hear anything abnormal. Sorry, there's a definite roar under throttle at certain speeds. I hope we don't play this game again...