1974 Kenworth K100. It is far from original. It has a Cat 3406a engine. 13 speed transmission. One of the previous owners put an air ride suspension in it from a Peterbilt. Fifth wheel plate is in decent shape. Has a plate and a 2 5/16 ball for pulling a gooseneck trailer on it. Have owned this truck for quite a few years and used it to haul hay and equipment around. Always ran great and didnt have any major issues until the other day. Havent check too far into it but Im pretty sure it has a broken intake valve because you can hear a popping sound coming from the intake. If you would like to come take a look at it let me know.