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I previously talked directly with an Allison engineer at the factory when changing out the motor oil in my M35A3 allison transmission. He told me that Transynd was a very good fluid, but that Dexron 3 was just as good for most situations. He said the only advantage of Transynd was the longer...

Yes. When I would come to a stop, the transmission was still trying to pull and then it would make a bang and downshift. Upshifting was the same. After the change to Dexron 3, no more of that nonsense. I've put thousands of miles on mine after the switch to Dexron 3 and zero problems. The...

My M35A3 with an Allison 1545 transmission also shifted up and down hard until I switched to Dexron 3 ATF. The change made all the difference in the way the transmission shifted - much smoother.