Thats kind of odd to me. I crawled under my 78 K-20 today to measure my exhaust pipe for some shadetree repair work and noticed that my rear driveshaft is a two piece unit with a carrier bearing. I have seen this on one ton trucks quite often but never before on a 3/4 ton. I'm not upset or looking to remove it, just surprised. I figured it was just cause its a 4 speed with a short 205 case. However, my other K-20 had a one piece shaft as have the three that my friends have. Mine also has the factory dual crossmember setup, a factory tach, and a skidplate. I guess it was worth trading my dead 98 k1500 for. This one at least starts and drives.