Thinking about buying my first tractor and one of these popped up. The owner claims it's 74 model. It has the Checker grille and the PTO lever is to the right and behind the driver. From the "Oliver 550 purchasers checklist" description of the PTO lever this would put the tractor in the pre-59 range. Also when shifting ranges on the transmission is it as simple as moving to nuetral then bumping forward/backwards? I've never seen a transmission setup this way. If anyone has a loader on one of these I'd appreciate some feedback. This tractor does not have power steering so that might make it impractical.