Re: Reverse in BW was: UPDATE: Towing an automatic

[jmantle@xxxxxxxxxx]

There was an ATRA buletin years ago that called for drilling a .030" hole in the rear servo piston to relieve any pressure that wasn't supposed to be there. We used to do that to all aluminum BW's, it did save the rear band.

Jim Mantle

On June 27, 2005 JOE B FULTON wrote:

> Matt, Jim B., Anyone?
> 
> Wasn't there an old service bulleting on the BW
> trannies (M35 at least) which required that a shuttle
> valve be drilled out slightly to prevent a slight
> pressure on the reverse band, which increased fuel
> consumption and wear on the transmission?
> 
> I seem to recall that was a old trick and my
> transmission shop at the time (Westminster
> Transmission) knew of the fix.
> 
> Regards,
> Joe Fulton
> Salinas, CA
> --- Jim Blair <carnuck@xxxxxxxxxxx> wrote:
> 
> > A: A common problem with the Borg automatics is
> > reverse engaging while in
> > drive (due to sloppy valvebody wear) which wears off
> 
> > the rear band.


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