If the 340 is equipped with what IH called a high speed first and reverse with a 55 tooth sliding gear the 300, 330 and 350 first gears work. If the 340 has the standard first the 300 and 350 gears won't work. Unless you change the top and bottom gear and the reverse idler from a 300, 330 or 350. Will make the ground speed a little faster in first and reverse. Some 504 have the low first speed that works. Can't think of another. 460 utility has one slower than a 350 but don't remember if its the same tooth count as the 340 standard first. Thinking they were just a little higher ratio.
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Today's Featured Article - When Push Comes to Shove - by Dave Patterson. When I was a “kid” (still am to a deree) about two I guess, my parents couldn’t find me one day. They were horrified (we lived by the railroad), my mother thought the worst: "He’s been run over by a train, he’s gone forever!" Where did they find me? Perched up on the seat of the tractor. I’d probably plowed about 3000 acres (in my head anyway) by the time they found me. This is where my love for tractors started and has only gotten worse in my tender 50 yrs on this “green planet”. I’m par
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