'79 FJ40 Rear Differential rebuild

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Paul Hovnanian P.E. - 01 Dec 2004 01:45 GMT

I may be needing one soon. The pinion bearing had some play in it.

What's a reasonable price for a rebuild? I can pull the differential
carrier and bring it to the shop myself (saving the axle-pulling labor
charges).

What are the best shops in the Seattle area to have this done?

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Roger Brown - 01 Dec 2004 03:08 GMT

> I may be needing one soon. The pinion bearing had some play in it.

You could try tighting up the nut on the pinion flange. Unstake the nut, set a
torque wrench to about 90 ft.lbs. and see if it'll snug up at all. Often that
is all that is needed to take up the slack. I did it a few times on my old 3rd
member in my 4Runner.

Otherwise figure about $200 labor on the rebuild, parts will vary demending on
what's damaged. Might be more cost effective to pick up a used 3rd from a
junkyard.

--
Roger

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Refinish_King1 - 02 Dec 2004 18:45 GMT

$200.00?

Back yard mechanics aren't doing them that cheap anymore!

Lots of liability and chance associated with doing a third member, and
letting someone else install it.

Refinish King

>> I may be needing one soon. The pinion bearing had some play in it.
>
[quoted text clipped - 13 lines]
> --
> Roger

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Paul Hovnanian P.E. - 04 Dec 2004 01:56 GMT

> > I may be needing one soon. The pinion bearing had some play in it.
>
> You could try tighting up the nut on the pinion flange. Unstake the nut, set a
> torque wrench to about 90 ft.lbs. and see if it'll snug up at all. Often that
> is all that is needed to take up the slack. I did it a few times on my old 3rd
> member in my 4Runner.

Thanks. There was indeed some slack in the nut. If the bearings are
shot, it'll just loosten up again in a month or two, but it seems fine
now.

> Otherwise figure about $200 labor on the rebuild, parts will vary demending on
> what's damaged. Might be more cost effective to pick up a used 3rd from a
> junkyard.
>
> --
> Roger

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Bloody typical, they've gone back to metric without telling us.

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