..and here clyde is the "shift arrester" spoken of above:

url]http://californiamotorsports.net/collections/porsche-996-turbo-gt2-and-gt3-parts/products/cms-996-shift-arrester[/url]

roger at CA Motors=ports is as knowledgeable as they come with the g50 box and i would call him if your english is good enough to handle which i am sure it is.

this part might well prevent your problem from getting worse etc. good luck.