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Re: [GMCnet] Final Drive Intermediate Axle questions [message #322530 is a reply to message #322526] Wed, 23 August 2017 08:33 Go to previous messageGo to previous message
USAussie is currently offline  USAussie   United States
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma:
Senior Member
Denny,

I can't attach photos to GMC net emails so I'm sending a file to your email "Olds Toronado 3.21 FD" which shows that the 66 & 67
Olds had the bracket as well.

Regards,
Rob M.
The Pedantic Mechanic
Sydney, Australia
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426
USA '77 Kingsley - TZE 267V100808


-----Original Message-----
From: Gmclist [mailto:gmclist-bounces@list.gmcnet.org] On Behalf Of Richard Denney
Sent: Wednesday, August 23, 2017 10:17 PM
To: gmclist@list.gmcnet.org
Subject: Re: [GMCnet] Final Drive Intermediate Axle questions

I wonder if Gary (or Manny) has one lying around in his stash. Seems a lot
of trouble to remove one just to measure it.

Given that this strut only appeared on Eldorados, and given that only
(some) Eldorados used the 3.21, and given that the shaft is different with
that FD, I wonder if the struts are the same for the 455 application. Do we
know that the blocks have the same width across those mounting points?
Manny tells me the brackets are the same, but I see an extra mounting hole
for that strut in the picture I linked, so I suspect that Cadillac dropped
the use of this strut just like GMC did for the motorhome. I know that the
3.21 has been used pretty routinely with 455's, but I've never heard talk
of this strut before.

Maybe if you could measure the critical distance between the bracket and
some reliable point on the final drive, I could use that to validate the
straightness of the bracket once installed. If the measurement is correct,
then there is no need for the strut, it seems to me. My suspicion is they
used it for a while and then decided it wasn't really necessary.

How in the world did you end up with one on your motorhome? Have you always
had it? I don't see any hint of it in X-7425, looking at Figure 4, Page
3C-4.

I won't be back at the coach until tomorrow night at the earliest, or
probably Friday night or Saturday morning. (The grass still needs to be
mowed and the coach is an hour away.) If I can't get this resolved
immediately, I'm going to do other things (like putting in the front end,
and dropping the tanks) while this waits for resolution. I'm going to give
Manny a call today to discuss it. But I need to have this all done by Labor
Day weekend, and I'm traveling next week and the following week.

Rick "a little early in San Jose" Denney



On Wed, Aug 23, 2017 at 7:49 AM, Ken Henderson
wrote:

> Yep, the 6.056 brace is the one I was talking about.
>
> Might know we'd have to have Gary to explain it.
>
> While your problem is obviously more fundamental than that, it may be worth
> the minor effort to fabricate and install one. If it helps, at least it
> may give you a clue to the correct solution.
>
> Do you want me to remove mine and measure it for you?
>
>
> Ken H.
>
>
> On Tue, Aug 22, 2017 at 11:36 PM, Richard Denney
> wrote:
>
>> With that clue, I found this:
>>
>> http://www.caddydaddy.com/1967-1969-cadillac-eldorado-
>> final-drive-output-shaft-flange-front-drive-axle.html
>>
>> The bracket I have doesn't have a hole for the outboard end of that
> strut,
>> although it looks like it uses one of the retainer bolts plus an
> additional
>> alignment bolt.
>>
>> Rick "wondering if this could be fabricated" Denney
>>
>> On Tue, Aug 22, 2017 at 11:08 PM Gary Kosier
>> wrote:
>>
>>> Rick,
>>> ''It's because that strut is only used on the Eldorado.
>>>
>>> Gary Kosier
>>> 77PB w/500Cad
>>>
>> --
>> Rick Denney
>> 73 x-Glacier 230 "Jaws"
>> Off-list email to rick at rickdenney dot com
>> _______________________________________________
>> GMCnet mailing list
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--
'73 X-Glacier 230 "Jaws"
Northern Virginia
Offlist email: rick at rickdenney dot com
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Regards, Rob M. (USAussie) The Pedantic Mechanic Sydney, Australia '75 Avion - AUS - The Blue Streak TZE365V100428 '75 Avion - USA - Double Trouble TZE365V100426

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