I have an 1980 D50 (Geronimo) and he is a sport model with 2.6 and 5 spd. I run him at 10BTDC, and currently have a weber DGEV 32/36 tuned by a friend who works with Webers everyday on foreign and exotic cars. Later 1st gen trucks have the day / night mirrors, or you can get an aftermarket replacement on eBay. Since it is a 2.6, it has the larger u joints held in with clips. You can still join MightyRam50.net, but the decals are NLA as far as I know. I have owned Geronimo since new in 1980, so I know a thing or 2 about the early model 1st gens - Have a 79, 80, 81, and 2 86 1st gens at the moment.