When they ran out of Super M parts, they started building Super MTAs.
It was very common for IH to continue building a tractor until they ran out of parts, rather than cutting off production at December 31st. For example, IH made the regular H and then the Super H in 1953.
There are major differences in the design and layout of the rear half of a Super MTA compared to a Super M.
All Super MTAs had provisions for the TA and IPTO, whether they were equipped with them or not. That means there were spaces in the castings of the transmission, torque tube, and rear end for TA and IPTO.
"Super MTA" was the official model designation of the tractor. The "Torque Amplifier" was a feature of that tractor.
Officially, the Torque Amplifier was STANDARD. "TA delete" was the option.
Why delete the TA? COST. The TA delete was cheaper, and a farmer would order one that way to save money.
Also keep in mind that many farmers were wary of new technology, and had odd notions about things they knew nothing about (wow, just like today!). Many opted out of the TA because they'd "heard" that it was no good from someone.
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Today's Featured Article - Third Brush Generators - by Chris Pratt. While I love straightening sheet metal, cleaning, and painting old tractors, I use every excuse to avoid working on the on the electrics. I find the whole process sheer mystery. I have picked up and attempted to read every auto and farm electrics book with no improvement in the situation. They all seem to start with a chapter entitled "Theory of Electricity". After a few paragraphs I usually close the book and go back to banging out dents. A good friend and I were recently discussing our tractor electrical systems when he stated "I figure it all comes back to applying Ohms Law". At this point
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