That looks like a piece of an internal snap-ring. This would
usually hold a set of clutches and or a clutch piston in the case
or in a drum in the transmission. Could have broken from age or
damage to the ledges that keep the ring in place. Only a matter
of time till there is more damage and the transmission quites.
Possible cause could be shifts that are too rough due to too high
a shift pressure and cause the clutches or piston to bang against
that ring way too hard and breaking the land that it rests in.
Start looking for a new transmission it's only a matter of time.
The car should not be able to move in park unless the parking
pawl is broken or a tooth or two are broken off the shaft or drum
that it locks. Now maybe occasionally the pawl will not engage a
notch and the car may move a bit till the pawl catches in the
next notch.
Manfred
Allan Streib <str...@cs.indiana.edu> wrote:
>So tonight I drain the tranmission and TC, planning to do a fluid
>change. The fluid is rather dark so it's likely well overdue.
>
>I drop the pan, and stuck lengthwise about halfway into in the
filter
>intake opening I find this:
>
> http://tinyurl.com/cnx739a
>
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