Re: 71 BW Auto Tranmissions

["Ralph Ausmann" <ralph.ausmann@xxxxxxxxxxx>]

http://clubs.hemmings.com/frameset.cfm?club=classicamx and look for the July
2001 newsletter for a repro of an old article from HR Mag for toughening up
the BW Automatic (1969)

(From Hot Rod Magazine May 1969 -/- Text and photos by Bud Lang)

B&M beefs the American Motors trans to stop slippage, wear, and losing
races. Here's how it's done.
_______________________________________________________________________

I talked to a guy here in town once that had a Rebel Mariner Wagon that he
had his BW Automatic rebuilt by local Transmission rebuilder .  He said they
rebuilt it using Ford FMX parts and worked great.    Now I assumed they used
internal parts for FMX.  I don't think they just bolted on a complete FMX.

But I figured there should be something around yet on the "beef up" job by
B&M for that M11/M12 even if it was back in 1969.  B&M is still in
business...
_____________________________________________________________________
Ralph Ausmann  -  Hillsboro, OR - > http://mysite.verizon.net/res79g4m/
Classic AMX Club of Portland - http://clubs.hemmings.com/classicamx

---------previous message---------

Date: Sun, 02 Jan 2005 19:20:43 -0500
From: farna@xxxxxxx
Subject: Re: 71  BW Auto Tranmissions
To: mail@xxxxxxxxxxxx

The 727 has a very heavy rotating assembly. That's one thing that makes it
strong, but it eats up a LOT of power to turn when compared to others.
That's why there are so many beef up parts for the 9xx series -- racers
prefer them. The iron BW has stronger internals, but not a lot more rotating
mass than the lighter aluminum versions (some, but only a pound or two). The
only real "problem" with the BW is that no one makes a shift kit for it. An
old time shop might have a template to make one, and someone here posted
something about a company that may have a towing shift improver kit still
available. Use the search feature for BW and/or Borg Warner (also
Borg-Warner and B-W), or maybe just "shift kit". Should find the post. You
need to do it soon though, the archive will "roll over" soon and start over!

On January 2, 2005 Joe Wyatt wrote:

> Thanks for the info been running the 904, 998s, and 727,  In my 71, and
72s.
> The 71 had a BW in it, but was always having problems with it Alum/304.
> Changed the eng to a 1974-360 and used a 904 in it.  Got a 71 360 eng the
> other day with the steel BW and was thinking about trying to use it in the
> 71 after rebuilding it.  I have a 727 that will fit it also.
>