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Denis S

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About Denis S

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  1. Can the diesel tank be modified to work in a gas truck?
  2. Thanks for the info. As you said, it's a 5-speed. I have 4 upshifts, at 2500 rpm, and then the torque convertor lockup. So it is the Alison 5-speed. I'll play around with the T/H mode to get familiar with that function.
  3. So which transmission do I have? The shifter has the standard PRND321, and I have a tow/haul mode button on the end of the shifter. Is it a 5 speed, but I'm only using 4? I'll test drive it later and verify the shifts.
  4. I recently purchased a 2001 2500 HD 4x4 with the 8.1 gas engine. While greasing the driveshaft, I noticed a spin on filter for the transmission and the words Alison on the tyranny pan.. It's a 4 speed automatic.. I thought Alison transmissions were either 5 or 6 speed. Which model Alison transmission do I have?
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