I don't know the anwsers to all your questions, but I can steer you to who would know: D&D Performance or is it D&D Transmissions? I forget, anyways, they are located in Michigan and can be found in 5.0 or MM&FF advertisements.
They specialize in transmissions, so they would definately be able to anwser your questions.
Hope this helps.
E
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1991 5.0 LX Coupe - 38,000 miles
13.17 @ 106.14 mph w/ 2.138 60'
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