Re: 71 BW Auto Tranmissions

["Joe Wyatt" <jwyatt@xxxxxxxxxxxxxx>]

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.

Date: Sun, 02 Jan 2005 05:22:57 -0500
From: farna@xxxxxxx
Subject: Re: 71  BW Auto Tranmissions
To: mail@xxxxxxxxxxxx
Message-ID: <ADVANCES62YILoygXLs00000621@xxxxxxxxxxxxxxxxxxxxxxx>

The internals are similar, almost the same but not quite. Basically the iron 
case internals are a bit stronger. Main strenght is the iron case itself. 
The servos push against the case. If there is to much pressure the aluminum 
case can crack.

I had an aluminum trans that had something stuck in the valve body, causing 
it to go way over pressure and slam in gear. Case cracked while shop was 
working on it! Threw valve body across an open field (the shop manager!) and 
rebuilt a junker with my internals and the junker's valve body. No more 
problems!

Any Chilton's auto repair manual will have a cut away or exploded parts view 
of the trans that covers through 71. Or a TSM.

On January 1, 2005 Joe Wyatt wrote:

> Can anyone provide the following information?  What advantage does the 
> steel
> case 71 BW Shift-Command Auto Transmission have over the Aluminum case
> Shift-Command 71 BW Auto Transmission.  Are the internal parts
> interchangeable?  Any one have cut sheets on the internal lay out of them?
>
>
>
>
> .