The rear axle is a Dana Model 23 from either a 6 cylinder Studebaker Lark
or Champion (circa 1959). The ratios I know about are 4.51 , 4.27, 4.09,
and 3.73..there are probably others available. The most common one that
I've found has a 3.73 ratio. The higher numerical ratio's are more
difficult to find although a NOS source for Studebaker (Neuman and Altman)
had a NOS 4.51 ring and pinion available last time I checked. Some of these
axles were fitted with a LSD.
If you have a Morgan (pre 61? +4) with a Salisbury 3HA axle these
Studebaker ring and pinions should be interchangeable.
Hope this helps.
Regards,
John
From: Susan and John Roper <vscjohn @ iamerica.net> on 12/31/98 09:42 AM
PST
To: John Pavone/Notes4/Vanstar
cc: Morgans @ autox.team.net@SMTP@Exchange
Subject: Re: Plus 4 rear ends
John, Can you tell me anything about the Stude axle that was used, model it
came out of, gear ratio, lsd? thanks, John
jpavone@vanstar.com wrote:
> A few months ago I did some checking into using the Studebaker (Dana 23)
> rear axle for my Morgan. Unfourtunately, NOS Studebaker rear axles are no
> longer available. There are however lots of good used ones available for
> not much money (about $100). The Studebaker axle does have to be narrowed
> to fit a Morgan. Additionally, the axle shafts will not have the correct
> outer splines to work with the Morgan hubs. This can be solved but
either
> attaching a cut Morgan axle shaft to the Studebaker shaft or better yet
use
> a custom axle designed for this purpose. A machinist in the midwest had
> made a batch of these axles awhile back for a very resonable price.
> However, when I spoke with him about making up a pair of these a few
months
> back he quoted me about $1800 a pair!! I can provide some names and
phone
> numbers if you would like to persue this.
>
> Regards,
> John
>
> 59' 4/4
>
> From: "Ernest(Chip) Brown" <ebrown @ ms.com> on 12/31/98 05:03 AM PST
>
> To: Phil Roettjer <Phil.Roettjer @ quantum.com>@SMTP@Exchange
> cc: morgans @ Autox.Team.Net@SMTP@Exchange
> Subject: Re: Plus 4 rear ends
>
> You might want to contact Cantab Motors in Purcellville, Va. A year or so
> ago
> they were toying around with NOS Studebaker rear ends which had to also
be
> modified (??narrowed??) to fit the Morgan motorcar. I spoke with a Morgan
> Fuller
> 540 338 3751 at that shop. He's still there; I saw him at Summit Point
> raceway
> in late November. Don't know if they were actively modifying these rear
> ends
> for Morgans or not, but a quick call would probably answer your
questions.
> Chip Brown
>
> Phil Roettjer wrote:
>
> > I am in the process of rebuilding the 7HA/1 rear end on my 1967 plus 4
> which
> > has a 4.1 ratio. I have inquired about getting a 3.7 ratio ring and
> pinion
> > set and I hear they are not available. I understand that the rear end
for
> > new plus 4s will fit in the older cars. So I am contemplating just
> getting
> > a new one. Has anyone done this change? Is it a drop in or are some
> > modifications required? I heard it is 1 inch wider and that the hubs
must
> be
> > machined .5 inch each to compensate. Has anyone done this change?
> >
> > Thanks,
> > Phil Roettjer
> > Upton, Ma USA
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