I just put my newly rebuilt 250 into my 66 c10 and the universal is 3/4 inch to far away from the yoke coming out of the 4 speed "granny" trans. I don't know how this happend nor what to do about it. The engine and trans mount bolted right up to were they go so I don't see how they could be off or where to get the extra 3/4" I need to hook up the driveshaft