mkirsch said: (quoted from post at 15:57:24 12/21/11) Strangely enough, the (vastly improved) 460's rear end continued on in the 656, 666, and 686 tractors, with engines that were even more powerful than a stock 560.
These are also regarded as some of the best tractors IH ever made.
Very true.
Further improvements were made as series of tractors progressed.
When the 560 came out, it was IH's big row crop powerhouse. IH and farmers tried to ask more from a tractor that wasn't up to the challange. There are many parts other than the rear end that were basically robbed off of earlier tractors and put on the early 460 and 560's, and other issues with these tractors that were changed/improved/remedied by the time the 656 hit dealers.
I'm sure alot of people bought 656, 666, and 686 tractors as their "big" tractor or only tractor. Many also bought them for haying, loader duty, manure work, cultivating, spraying, planting, and other work other than heavy tillage. When new, most 560's had a plow behind them at least one season a year. I don't think that can be said for the same percentage of 656, 666, and 686 tractors. I'd also be willing to guess that around half of the 686's sold have never done a full season of plowing at all.
Case IH could make a 75 hp. tractor today with a "stock" early 560 rear end and not suffer the massive failures they did with the 560. Very few people buy new 75 horse tractors today for heavy tillage work.
My grandpa bought a new 560 diesel in early 1959, the only tractor he ever bought new. He didn't pull the snot out of it either, he had a 3-16 plow. Several head gaskets and 3 rear ends later, he became a Case man until he retired. In the 4 years he had the 560, it never made it through a spring or fall season without a major breakdown. A Farmall C was his "little" tractor, and probably did more work in those 4 years than the 560 did.
AG
This post was edited by AG in IN at 08:59:26 12/21/11 2 times.
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