Re: Welcome new member - 1964 Bristol 408

Bill, thanks but I still have a concern.

The reason is because I haven't been able to be sure yet how the 62 and 65 transmissions vary and therefore be sure that what works on a 65 will work on a 62.   My only sources of information are websites and helpful owners like you but here's what I think I know. I'd welcome any corrections that anybody can offer.

I assume the transmission would get damaged if it was put into gear with the parking sprag engaged. Wouldn't it?

The 62-64 transmissions with pushbutton shifters all had a park sprag with its own cable, separate from the cable that shifted the transmission. The park cable was not operated by any of the pushbuttons.   Instead it was operated by a separate lever which not only engaged the sprag but also forced the pushbutton shifter into neutral. The shifter could not be put back into R or D unless the park lever was moved to disengage the park sprag. So they avoided the transmission being in gear while the park sprag was engaged.

The 64 model year was the last year for pushbutton transmissions delivered from the factory. The 65 and later models got column or console shifters with PRNDL patterns.   The park sprag was still operated by a separate cable but that cable was attached to the shifter and moved with the shifter.   The transmission valve body gained a 'park' position too which just put the transmission in neutral. i.e. it was a second neutral.

So the 63-64 and 65 transmissions have a slightly different way to prevent being in gear while the park sprag is engaged.

Bill, your car looks like it has the original 1960 pushbutton shifter combined with a 65 transmission. I know you have that separate push/pull knob for the park sprag but I haven't worked out how your car's park knob is also forcing the transmission into neutral when it engages the sprag. Do you know how it does that? Or can anyone else figure it out?

It's just that, if I have explained things correctly above, I could easily add a knob or lever to engage/disengage the park sprag on my 62 transmission but it would not force the car into neutral.

Regards
David

On Sat, Jul 29, 2023, 18:45 Bill Helm <modigger1@xxxxxxxxxxx> wrote:

Hi, David -

The forward and reverse gear will not engage when the park sprag is engaged. I've had the car 4 years now, and it has worked flawlessly for me.

Bill

From: 1962to1965mopars@xxxxxxxxxxxxxxxx <1962to1965mopars@xxxxxxxxxxxxxxxx> on behalf of D W <dwomby@xxxxxxxxx>
Sent: Saturday, July 29, 2023 3:14 AM
To: 1962to1965mopars@xxxxxxxxxxxxxxxx <1962to1965mopars@xxxxxxxxxxxxxxxx>
Subject: Re: Welcome new member - 1964 Bristol 408

Gary, here's photo of my dash (right) and that of the next model of Bristol dash (left) which has the park lever. The later one's buttons resemble a 62 Dodge Dart. I think the shifter from one of those could be made to work although I suspect the mounts for the shifter inside the dash are different.

Yes, all I have now is the parking brake which operates correctly but is pretty weak despite all my efforts adjusting it.

David

On Tue, Jul 25, 2023, 21:16 62-65-mail-list-club-Gary-H <62-65-mail-list-club@xxxxxxxxxxx> wrote:

Thanks for the update David.

When you get a chance post a photo of the dash of your 1964, showing the pushbutton setup there.

Maybe we can figure out how to add a suitable park lever.

I am assuming you just use a parking brake for now.

Thanks,
Gary H.

> -------Original Message-------
>
>
> That's me. The car is in Florida where I live most of the year but I
> spend summers in Canada so I am away from it at the moment.
>
> Yes, it was re-engined in the early 90s with a rebuilt 360 from a 78
> Monaco!!!!!! It also got a '62 727 aluminum case transmission. Still
> push-button shifter though.
>
> I look forward to picking people's brains about that transmission and
> shifter. It works but the car originally had an iron unit with no park
> mechanism. So the shifter has no Park lever but the current
> transmission has the parking mechanism at the rear of the case. I'd
> like to find a suitable pushbutton shifter WITH the parking lever on
> it one day.
>
> David
>
> On Tuesday, July 18, 2023 at 1:08:50 PM UTC-3 The 1962 to 1965 Mopar
> Mail List Clubhouse wrote:
>
> > Welcome new member with a unique vehicle, who wrote:
> >
> > "I have a 1964 Bristol 408 - it has a Mopar 360 and a pushbutton 727
> > transmission"
> >
> > I don't have his or her first name, but welcome -- and that is a
> > unique Mopar-powered car!
> >
> > This link has a short overview:
> >
> > https://en.wikipedia.org/wiki/Bristol_408
> >
> > Thanks,
> > Gary H.
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