Hi guys,Actually I have 2 questions.I have a 67 SS 396 4 spd with M20 matching# with a hurst shifter.Should it be a Muncie? Next question. Where the spedo cable goes into the trans.there is a transducer the cable goes into first and transducer fits in trans housing.I thought it was an aftermarket gadget but it has a GM #.Does anyone have any info?Thanks Paul

Originally came with a Muncie shifter.
The spedo adapter was used for certain lower gear ratios and tire combos, 4.11, 4.56, 4.89.