The speedometer housing on mine has both a VSS and a mechanical hookup. Pulled it out an early 90's Dakota. Might have been a one year only thing when they still had mechanical speedometers and just switched over to the Magnum motors.
3.9 L Mirada CMX
- Thread starter Joe12459
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Joe12459
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I think that's probably an earlier 42RH. They weren't completely electronic yet, so they had both. The 42RE is all electronic, so no mechanical drive.
Joe12459
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That would probably be an option, as the tailshaft probably didn't change, but I already installed all new electronic gauges anyway. The GPS sender should solve my problem.
slant6billy
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A guy I work with had put a 6 speed into an early camaro. I can ask him, but I remember he had some sort of mech drive with the sensor along side it.
Joe12459
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A lot of aftermarket OD transmissions do have the ability to connect electronic and manual speedo senders. I'm pretty sure I could use an early 42rh tail housing to achieve the same thing, but I don't need the mechanical drive, as I've already installed electronic gauges. My speedo just can't use the pulse signal from the stock output shaft speed sensor, because it is a ground signal, and mine requires a 5 - 15 volt + pulse. The GPS sender I ordered is 16000 PPM, 12v + signal, so it should work fine. I have a Speedhut GPS speedo in my Hemi Mirada, and I love it.
Joe12459
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Got the speedo working today. 2000 rpm at 65MPH.
