George:
Re the rear axle, I took mine to a shop to have it done. It needs to be
welded and placed on a lathe to insure that the tube is welded in true to
the housing. I' m not sure of the rear axle but if the bell housing is out
by two degrees it will wear the spines off the intermediate shaft very
quickly, Looking at the rear axle I figured the same principle applied.
Having had my Carbs recently rebushed ( Apple) you will find it makes a
world of a difference for the better.
Good luck.
Bob Nogueira
-------- REPLY, Original message follows --------
> Date: Saturday, 05-Jul-97 09:05 AM
>
> From: George Gerth \ Internet: (ggerth@west.net)
> To: BRITISH-CARS@AUTOX>TEAM \ Internet: (british-cars@autox.team.net
)
> To: MORGANS \ Internet: (morgans@autox.team.net)
>
> Subject: Salsibury 7HA Rear Axle on Mog +4 - Advice needed
>
> The right rear axle tube on my 1963 Morgan +4 is loose where it stubs into
the
> Differential housing. The two spot welds which held it in place have
broken.
> Since it now can twist a couple of degrees and wiggle up and down (giving
me
> IRS!) it also is leaking from this joint. I have the entire axle out of
the
> car and will take it to a shop next week.
>
> My question is how best to repair it. If I just re-do the spot welds, I
could
> try to seal the joint with some type of sealer/caulk. Otherwise I could
weld a
> bead around the tube/housing joint locking and sealing the joint in one
step.
>
> Anyone have any advise on this?
>
> I'm also concerned that the axle on this side has been weakened by this
motion.
> Are replacement axles available for this rear end? My car has wire wheels
.
>
> This has been a classic example of "project escalation". It all started
when I
> decided to get new wire wheels and tires for the +4 which have been LONG
over
> do. I had been nursing the old ones for a couple of seasons. With new
wheels
> I thought the I better tend to the brakes, which were equal to the old
wheels
> (WEAK). And, while at the front end doing the brakes, why not fit
decambering
> plates to the front suspension. They would compliment the new radial
tires.
> Well with the brakes and suspension (and rear axle) on their way to being
fit
> and trim, I will have to turn to the Carbs and re-bush the throttle shafts
. I
> can't have a motor that won't idle...
>
> George Gerth
> ggerth@west.net
> 63 +4
> 66 DB5
> 70 Dodge Dart /6
> 84 Ducati Hailwood Replica 900 Desmo
> 92 VW Corrado
-------- REPLY, End of original message --------
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
--------------------------------------------------------
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
-----------------------------------------------------------
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
------------------------------------------------------
John, Also look at a JEEP MAILSTER rear axle. They have ratios from 2:90
to 3:30 to 1,or so and they all have positraction and have the SAME
tread, brake drum to brake drum, as an MG B.
JimG
------------------------------------------------------