Gen-1. Tough to find anything then and now for full doors. Might consider fab'n some removable uppers for the ones you have. Me I park mine in the cold. Problem solved...lol. But seriously my doors are built with square tubing and now that I have done the cage chop mod, it would be much easier to build a detachable upper frame and window piece and add some channel to the cage with some weatherstripping. Still suicide doors but...and would have to put an outside latch/handle to open it.