Re: Farmall differential question......

Posted by chadd on May 07, 2007 at 08:58:45 from (155.92.32.116):

In Reply to: Farmall differential question...... posted by Patrick Martin on May 06, 2007 at 18:39:28:

As others have said, it depends on what is under the tires. The differential is taking part in a constant balancing act as to how much power it applies to each wheel. The gearset in a differential basically has three outputs, the left wheel, the right wheel, or both wheels. It will provide power to the one that is easiest to accomplish. So, it will apply power to the wheel that spins the easiest or has the least resistance to rotation. That is the reason that when you have one tire on dirt and the other in mud, the tire in the mud will start spinning. It is also the same reason that if a tractor has one new and one bald tire, the bald tire always spins first. By stepping on the spinning side's brake, you are increasing its resistance to rotation, so it will begin transferring power back to the other wheel, or if you balance it correctly,(which can be hard to do) both wheels. By using the brakes, you aren't "energizing" anything, you are simply changing the variable that the differential monitors and balances.

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