Brian, Myron,
The retro fit decks not only helped IH get rid of decks, it also helped the dealers get rid of any "old" stock they might have. Decks were optional equipment in those days - the customer bought a Cub Cadet and then if he wanted to cut grass he had to buy a deck. If he wanted to use the tractor for something else, then the dealer didn't get a "deck sale". The kit to put the timed deck on the 70/100 tractors was sold for the 70 and was not recommended to be used on the 100, supposedly because of the extra horsepower of the 100.
The retro fit decks not only helped IH get rid of decks, it also helped the dealers get rid of any "old" stock they might have. Decks were optional equipment in those days - the customer bought a Cub Cadet and then if he wanted to cut grass he had to buy a deck. If he wanted to use the tractor for something else, then the dealer didn't get a "deck sale". The kit to put the timed deck on the 70/100 tractors was sold for the 70 and was not recommended to be used on the 100, supposedly because of the extra horsepower of the 100.