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Re: Rear axle

To: "Max Heim" <>, "MG List" <>
Subject: Re: Rear axle
From: "mgamgb" <>
Date: Sat, 16 Jul 2005 12:08:41 +1200
I agree with the maintenance issue, as I have rebuilt a banjo diff myself,
but had to sent my Salisbury axle out to a specialist.

But from a production point of view -

During production the Salisbury diff  housing would have been measured on a
jig after machining, and likewise the assembled diff carrier.

A simple table would have provided the spacers required at each end and then
the final assembly could  be carried out by unskilled workers.

The banjo diff carrier on the other hand reqired assembly, then adjustment,
followed by locking the adjustment screws. Perhaps this task that required a
bit more skill and time?

I hazard a guess that a production organization would favour rapid cheap
assembly over ease of mainteance during service, particularly for a
component that usually provides a very long service before requiring

ian F

----- Original Message ----- 
From: "Max Heim" <>
To: "MG List" <>
Sent: Saturday, July 16, 2005 11:10 AM
Subject: Re: Rear axle

> Ah, thank you, that makes sense. I guess. I mean, what's more
convenient --
> a threaded adjuster built-in to the mechanism, or a "special tool" case
> stretcher that you use once in a lifetime? Seems to me this design was a
> step backward, at least in that regard.
> --
> Max Heim
> '66 MGB GHN3L76149
> If you're near Mountain View, CA,
> it's the primer red one with chrome wires
> on 7/15/05 4:01 PM, mgamgb at wrote:
> > The diff carrier location is set by selecting spacer washers that go on
> > outside of the diff carrier bearings. There is no threaded adjustment
> > the location of the carrier as there is in the banjo diff.
> > The spacer washer thickness are determined beforehand by measuring up
> > housing and the assembleled diff carrier complete with bearings.
> > This allows for production variations in the machining of the housing,
> > carrier, and the bearings themselves.
> >
> > The calculations for the thickness of the spacer washers include an
> > for the necessary preload on the diff carrier bearings, so to allow for
> > assembly the housing has to be stretched slightly.
> >
> > Cheers
> > Ian F

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