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hzjcm8's avatar
hzjcm8
Explorer
Apr 09, 2011

Let Me Know if You Have Allison Transmission Fluid Questions

Hi all, I've just joined Good Sam Club. I was the former Transmission Fluids Engineer at Allison Transmission. I held that position from 1990 until my retirement in 2009. Let me know if you have...
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SpinRite's avatar
SpinRite
Explorer
Apr 13, 2011
Hi, hzjcm8,

If using this method:
1. Drain old Dexron and re-fill with Transynd.
2. Remove return hose from transmission cooler and aim it into a bucket.
3. Have a helper start engine, then shut it down as soon as you see fluid color going into the bucket change over to Transynd.
4. Re-connect hose, top off with Transynd.

Does this only replace the fluid in the cooler, or does it also take care of the torque converter?

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