it is probably an engine mount, late style
see last diagram - does it look like 8 or 9 ??
I am sure you have an engine mount as tranny mount is integral to tranny.
pictured is side shift style engine mount. you probably have tail shift style.
http://www.autoatlanta.com/porsche-parts/p...e_914_parts.phpFYI - it is worthless - they are a dime a dozen. but thanks for offering it up. what else you got??