The main problem was the bearings used in the final drives.
Originally they were the same ball bearings as used in the M, and simply weren't strong enough.
The 560 had nearly twice the HP as the original M, but the rear end was not updated for the extra HP. Same deal for the 460/H relationship.
IH updated all the tractors with roller bearings, and any new ones came with the roller bearings from the factory. After that everything was fine.
This begs the question: If someone were to find an original 460 or 560 that hadn't been updated, should it be updated? Such a tractor would be a RARE original, with low hours.
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Today's Featured Article - Trenching With a Plow - by Staff. Introduction: This interesting information came from one of the discussion forums here at YT. We thought we should place it up front so it could be read by anyone interested in putting old iron to work. [Editor] I tried something new today, and it worked so well I thought I should post it - in case it might help someone else. I'm running 100 yards of 4" drain pipe from the gutter downspouts of our house to a pond down the hill. This should hel
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