Charrlie_S
Well-Known Member
Does anyone know if a speed sensor from a later model TF (like a A-500) can be used in a 68 up 904 trans, to be used as a "trigger" for a aftermarket cruise control. Rather then putting magnets on the drive shaft.
Speed sensor question
- Thread starter Charrlie_S
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Professor Fate
Push the button, Max...
As far as "will it fit", yes. Can't say for sure if it will work for your particular aftermarket cruise control, but I believe so- if the cruise has a single wire to the sensor, wire that to one terminal of the VSS and the other terminal to ground.
This is the sensor from a '93 Dakota.
It allows you to retain your cable drive speedometer, as opposed to some other years that that don't have a cable throughput. It threads directly onto your trans speedo drive, but may require a bit of floorpan "clearancing" with a BFH; it gets pretty crowded down there in some situations. The cable output of the VSS is not sized the same as the trans. output, but a cable from the same years as the sensor will fit the sensor and a '68 and up speedometer head.
This is the sensor from a '93 Dakota.
It allows you to retain your cable drive speedometer, as opposed to some other years that that don't have a cable throughput. It threads directly onto your trans speedo drive, but may require a bit of floorpan "clearancing" with a BFH; it gets pretty crowded down there in some situations. The cable output of the VSS is not sized the same as the trans. output, but a cable from the same years as the sensor will fit the sensor and a '68 and up speedometer head.
Charrlie_S
Well-Known Member
Thanks, I thought it might work. I have one of Zemco ZT-1 Driving Computer with Cruise Control | eBay but I don't like the magnets on the driveshaft. It uses a two wire reluctance sensor (similar to the distributer pickup), not a 3 wire Hall effect sensor. The unit is programable for "pulses/mile".
Professor Fate
Push the button, Max...
I'd give it a shot.
The VSS gives 8 pulses per revolution, which should be in the ballpark.
The VSS gives 8 pulses per revolution, which should be in the ballpark.
Charrlie_S
Well-Known Member
Going to go for it. Will be a little while before I get to it.
Professor Fate
Push the button, Max...
Good Luck! 
Charrlie_S
Well-Known Member
I had one of their units on a Cordoba, back in the "80's, and liked it. I have a used zt-3 that was in my 64 Valiant, when I got it (going to put it back in). This unit will go in my 66 Valiant "race car, which I am making streetable. Most people don't know, but Direct Connection had a version called a "performance timer". P4349443, I have one of those, also. Direct Connection performance timer-P4349443 | For A Bodies Only Mopar Forum
I’ve got 2 of those bad boys. I forgot about them.
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