The round and square holes are just there to allow clearance for the bolt heads that hold the frog to to the beam.They attach just like the other short ones. They only extend back to provide more support against side sway.As said not all holes are used on all plows,but all may be used on others.That 'SuperChief bottom has from the early 1960,and is still used today.Available in 14;16;18 inch.The share and land side is common to all.
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Today's Featured Article - History of the Nuffield Tractor: Part 2 - by Anthony West. In February 1953 production of the ETC T.V.O engine started, ready for the March 1953 press announcements. The new TVO engine had a number of improvements which resulted in a 10 per cent more power (43bhp as against 38 bhp on the earlier engine) and 10 per cent more fuel economy. Some of the improvements are listed below: Redesigned combustion chamber, improved spark plugs and positioning, plug size 14mm(earlier size 18mm).
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1964 I-H 140 tractor with cultivators and sidedresser. Starts and runs good. Asking 2650. CALL RON AT 502-319-1952
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