Thanks for all the replies and advice I admittedly scratching my head over what could have went wrong. Many times on the forum I have stated how pleased I was with the conversion (bendtsens) since it was done almost 10 years ago. it is a mystery to me. Has anyone else who installed a GM 700r in their Packard had this problem? Even if you had the conversion (and it proved to be trouble-free) I would like to hear from you.

I was pulling my car out of the garage yesterday my foot barely on the gas pedal when all of a sudden the car accelerated out of control in reverse and I did not get it to stop until it hit the wall of my garage damaging by driver's side door. The car just did the same thing in drive-again I was barely able to get it to stop while burning rubber. Does anyone know what I should look at for this? My car has been converted to a GM 700r transmission for reliability I have never had a problem like this before.

I had my 1955 Packard 400 adapted to a GM 700r Automatic transmission. I purchased the Transmission and the adapter from Bendtsens transmission adapters. I had the conversion done by a local shop in Audubon NJ it was the best thing I ever did to that car-I had replaced 3 Twin-Ultramatics over the years and none of them lasted longer than 2 years.

When I first got my 55 I had a few issues with the torsion level I had the original control box replaced with a solid state control box from Pacific Northwest Packards . I sent them the original control box and they put the modern electronics in. PROBLEM SOLVED never had an issue with it after that.

Thanks guys I placed an order with Ynz parts for some wire and connectors probably more wire than I need but the price was reasonable and if I ever need more I can go to the trunk of my car to get it (where I will store the wire).

Thanks guys I placed an order with Ynz parts for some wire and connectors probably more wire than I need but the price was reasonable and if I ever need more I can go to the trunk of my car to get it (where I will store the wire).

Anyone know of a place that carries this wire and connectors?

Thanks for putting the pictures up that is certainly a beautiful car!

Maybe you could put some pics up of your new pride & joy?

Oh that's not too bad.