67' Transmission Fluid & Slippage

["Dave Grove" <dave@xxxxxxxxxxxxxxxxxxx>]

As Rob mentioned, - the worst it should do is cause leaks.  Of course leaks
often lead to failure (if the fluid level is not maintained, - shoot, people
don't even check their engine oil anymore...............)

I would just make sure that the kickdown linkage is adjusted properly, and
if so, then it's probably time for a rebuild.  I do not know of any fluid
(as in "improper" fluid) that would make a 727 "slip".  Fords yes, - Mopars,
no.

Regards,
DaveG.
----- Original Message ----- 
From: "Rob P" <fristpenny@xxxxxxxxxxx>
To: <mailing-list@xxxxxxxxxxxxxxxx>
Sent: Tuesday, July 20, 2004 11:42 AM
Subject: Re: IML: 67' Transmission Fluid & Slippage


> The story (old wive's tale?) I heard was that if your transmission fluid
had
> never been changed and you didn't have any trouble with it DON'T change
it.
> The reasoning was that the new fluid would "flush" the transmission and
> cause leaks. Sort of the way some of you advised against an engine flush
on
> a high mileage car.  I never heard about it causing slippage though.
>
> Rob
>
>
>
> >From: RandalPark@xxxxxxx
> >Reply-To: mailing-list@xxxxxxxxxxxxxxxx
> >To: mailing-list@xxxxxxxxxxxxxxxx
> >Subject: Re: IML: 67' Transmission Fluid & Slippage
> >Date: Tue, 20 Jul 2004 09:56:19 -0400
> >
> >If changing the fluid ruined the tranny, it needed to be rebuilt anyway.
If
> >the wrong fluid was used, changing it to the correct fluid should take
care
> >of it, as long as it wasn't driven much.
> >
> >I am not sure how this got started, but I have never heard that changing
> >the fluid will ruin the transmission. Leaving fluid in for too long after
> >it has been hot can cause problems, but these problems should not be made
> >worse by servicing the unit.
> >
> >One of my Imperials had a bad tranny when I bought it. The car had been
> >overheated while pulling a trailer over the Grapevine. The owner drove it
> >until it quit. The engine was ruined, but was made to run. The
transmission
> >was cooked. I had the engine rebuilt, and managed to keep that old tranny
> >going for two more years by having it serviced frequently. Finally, it
> >would no longer go into reverse, or high gear. While it was sick, the
fluid
> >would turn dark every 5,000 to 10,000 miles. When that happened I would
> >change what I could without draining the torque converter.
> >
> >I'll admit that this is an extreme case, I just don't see how changing
the
> >fluid could hurt the unit. After a certain number of miles, the
> >transmission is going to wear out. It can only last for so long.
Premature
> >failure is usually due to lack of service or catastrophic events.
> >
> >Paul
> >
> >In a message dated 7/20/2004 1:17:44 AM Eastern Daylight Time, "Cliff
> >Wilhelm" <ldangel987@xxxxxxxxxxx> writes:
> >
> > >The fluid was changed about 1.5 years ago when I got the car. It didn't
> >have
> > >any problems then. This would be the second change, only because the
> >filter
> > >was changed.
> > >
> > >I'll be irritated to find out changing the fluid is going to kill my
> >tranny.
> > >
> > >.c.
> > >
> > >
> > >>From: "jsadowski" <jsadowski@xxxxxxx>
> > >>Reply-To: mailing-list@xxxxxxxxxxxxxxxx
> > >>To: <mailing-list@xxxxxxxxxxxxxxxx>
> > >>Subject: Re: IML: 67' Transmission Fluid & Slippage
> > >>Date: Mon, 19 Jul 2004 12:40:56 -0700
> > >>
> > >>You should be using Dexron or Dexron/Mercon. I would try changing it
if
> >you
> > >>suspect that wasn't what was used. If the trans was a lot of miles on
it
> >&
> > >>the fluid never changed, changing it could cause problems to start,
even
> > >>with the correct fluid. My daily driver Fxxd had 190,000 miles & I
> >wanted
> > >>to have the trans serviced. The service manager told me not to even
> >think
> > >>about it. Doing so could potentially kill it on the spot was what I
> >was
> > >>told. My sister once owned a 67 polara & a mechanic friend told her
> >pretty
> > >>much the same thing.
> > >>John
> > >> ----- Original Message -----
> > >> From: c.wilhelm
> > >> To: mailing-list@xxxxxxxxxxxxxxxx
> > >> Sent: Monday, July 19, 2004 11:24 AM
> > >> Subject: IML: 67' Transmission Fluid & Slippage
> > >>
> > >>
> > >> I just have a quick question(s).... What is the recommended
> >transmission
> > >>fluid for my 67'? (I only found notes on a '58 in the archives).
> > >>
> > >> Recently I had my transmission filter changed, and now I have noticed
> > >>some slight slippage under harder acceleration? I am assuming it's the
> > >>fluid, as I never had slip before...?
> > >>
> > >> Thanks,
> > >> .c.
> > >
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