Robert I own a 61 long bed unibody. It has a 292 and a 4 spd granny low. I'm not sure how the truck was originaly equipt. I do know that the tranny is not OE I think the engine is not OE either. You can see pics at http://photos.yahoo.com/shelekelley. click on truck pics, or you can scroll in this forum to 61 unibody pics. I'd like to be in your registry. you can e-mail me at shelekelley(No Email Addresses In Posts!) . Thanks Rick Kelley.