My experience is that all non locking TCs seem to have some "slack".  From memory, if I let off the gas @ 4000 in my 86, it drops to about 3200.
Edward

Sent from a tiny touch screen

On Nov 10, 2012, at 9:40 PM, David Beierl <dbeierl@ATTGLOBAL.NET> wrote:

> Hello Volks,
> 
> I'm hoping that some of you with automatic transmissions will be
> willing to make a simple test for me:  Cruising on the level in
> non-windy conditions at 3,000 rpm in high gear, release the throttle
> and note the coasting rpm.  If you'd like to do the same at 4,000 rpm
> that would be interesting as well.
> 
> I have the odd feeling that coasting in third in my '89 has suddenly
> developed higher rpm and more retarding effect; and I'd like both to
> discover if it's true and also have ammunition for the discussion
> with the people who recently rebuilt the trans for me if so.
> 
> Thanks,
> David
> 
> --
> David Beierl -- dbeierl@attglobal.net