From: Steve & Jeanne Keith (cckw@attbi.com)
Date: Thu Apr 17 2003 - 10:46:11 PDT
Not correct.
The crachboxes with beveled gears have the dog clutches
like the CCKW tranny. The bevel gears create a thrust that
would make it jump out of gear if the gear was not locked
in place with a snap ring and a dog clutch used for engagement.
Steve AKA Dr Deuce
----- Original Message -----
From: "David Ball" <vought@msn.com>
To: "Military Vehicles Mailing List" <mil-veh@mil-veh.org>
Sent: Thursday, April 17, 2003 1:02 PM
Subject: Re: [MV] crash box transmissions
> Many Early Vehicles have crash box transmissions this a a generic term for
> any gear box with straight cut gears that "crash" when meshed during
input.
> Later boxes have bevel cut or angle cut gears which mesh with much less
> grinding "crashing" during input.
> Then the latest gear boxes with syncros have bevel cut gears and the
syncros
> match the gear speeds at input and solve all "crashing" but some unlucky
> miss shift grinding "crashing".
>
>
> Dave
>
>
> ----- Original Message -----
> From: "Mark Copeland" <copeland313@yahoo.com>
> To: "Military Vehicles Mailing List" <mil-veh@mil-veh.org>
> Sent: Thursday, April 17, 2003 6:45 AM
> Subject: [MV] crash box transmissions
>
>
> > I've done some research on the Canadian built Ford F15
> > (http://www.autogallery.org.ru/m/cmp15.htm). The
> > truck has a "crash box transmission". Could someone
> > please explain to me what that is?
> >
> > Thanks,
> >
> > Mark J. Copeland
> > MVPA #23916
> > Webmaster, First Florida Chapter
> > Military Vehicle Preservation Association
> > http://www.flmvpa.org
> >
> >
> >
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>
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