[Healeys] 4 stud axle

[Alan Seigrist]

Hi Peter -

The 9/33 diff was used mostly on the A90 Atlantic convertibles.  The
pumpkin is different (and much heavier) and if you plan on using it in
your 100, you need to have the ring and pinion remounted in your BN1
pumpkin.  The brakes are a bit of a stumper as they should use the
same holes as the 100?

Although with the MOWOG tag that means this is a BMC part, so it can't
be from an A70 or 90?  I'm confused.  I think possibly the early
Westminsters used a four stud axle?  Only a road car would use a
3.66:1 diff ratio, so it would need to be a bigger austin BMC from
around 1955 or something like that.

Best,

Alan

On Fri, Aug 24, 2012 at 9:40 AM, John & Kerry Rowe
<jkrowe46 at bigpond.net.au> wrote:
> Hi Peter
> Just had a look at my drums-they are 1B4276 from what I can see
> Cheers
> John
>
> -----Original Message-----
> From: healeys-bounces at autox.team.net [mailto:healeys-bounces at autox.team.net]
> On Behalf Of Peter & Veronica
> Sent: Friday, 24 August 2012 10:05 AM
> To: healeys at autox.team.net
> Subject: [Healeys] 4 stud axle
>
> Gb day all
>
> Ib m looking at a 4 stud axle to put in my latest project. On cleaning it up
> I found the diff centre flange is marked 9/33, which equates to a 3.66:1
> ratio. What would this be from? Also the drums that came with the axle,
> although looking superficially correct, do not in fact fit as the holes are
> about 1/4b  further apart than the studs in the hub. They are MOWOG parts,
> marked 1B4483C. Any thoughts?
>
> Cheers
>
> Peter Linn
> Brisbane Oz
> BN1 Ward Special coupe
> BN1 Holden V6
> Ausca/Healey/Alfa
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