.Radman:...much further than I ever got!....I was thinking a small 12 vt reversing motor and a leed screw...and that is as far as I got!.....I had to take an emergency nap that day-the strain of laying under the tractor on a creeper and thinking out a plan made me sleepy.....and as usual- I forgot about the plan-some time during that nap till now[2+years ago].....geofkaye
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