I have installed them on a 1954 and a 1955 first series and consider it one of the best upgrades I have done. The doors close without slamming and stay closed. The latches and the install will be different on a door with no vent window, be sure to order the correct kit. There was no welding required with the vent window doors but making that first cut was a little concerning. The install instructions and pictures were very good and there are videos on the Altman site and on line. On the push button doors it is easy to install a lock on both doors.
