This may sound like a history lesson. From the time the 3 speed transmission it was called a A670 auto trans, until 1995. Thats when chrysler change the numbers, because of the A604 trans.So now you have the 31TH. A604 41TE and when there was the 904, 999 became 42/44 RE or RH, 46RE or 46RH. The reason of the number change, because nobody wanted to buy a mini van with the A604 trans. Hope this helps you in some way. If not you can always send a pm. I am a factory trained trans tech.
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Master Chassis tech, Transmission
Automatic and Manual and Suspensions.
Also repair front and rear diffs and all engine
repairs inc Diesel. A/C repair too.
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