I have an old New Holland 56 rake. It has all the teeth and and I replaced the drive shaft from the wheel to the gear box and the bearings in the shaft between the back wheels. Is there much of a difference between it and a 256 New Holland? I know that physically they look very similar but is the 256 a better rake? My 56 seems to be leave a LOT of hay behind - its as if the rolabar is moving too slow. The windrow it leaves behind is more like a loose pile of hay than a "spun" windrow. The loose pile of hay settles and spread out making it difficult to bale - especially in heavy hay. I'm all for buying a new (newer) rake if its makes a better windrow but I don't want to throw money away on something that doesn't do any better job.