Spedometer using magnet on driveshaft. Or something. Need help!!!!!

BMB Guns · Jul 15, 2016

Spedometer using magnet on driveshaft. Or something. Need help!!!!!

Ok. This post pertains to my deisel trike build... So, the Spicer 3053a has no output or anything for a speedometer. It's designed to feed a divorced transfer case and the speedometer is attached to it. I've seen speedometers that work with a magnet on the front wheel. I would really prefer something that would work off the driveshaft. I've seen analog, electric, GPS (not fond of the GPS idea), sending units that I have no idea what goes with what, etc. I'm totally ignorant to universal speedometers so any help that can be provided would be appreciated.

diver · Jul 16, 2016

I used one of these. worked perfect for me and the price is right. http://www.ebay.com/itm/Motorcycle-...ash=item567f20d6bd:g:hrAAAOSwixtXQmpc&vxp=mtr

BMB Guns · Jul 16, 2016

diver said:
I used one of these. worked perfect for me and the price is right. http://www.ebay.com/itm/Motorcycle-...ash=item567f20d6bd:g:hrAAAOSwixtXQmpc&vxp=mtr

That spedometer setup does look like a problem solver! It has everything! Only problem for me is that I have a Deteoit Diesel industrial engine instrument pannel that I really want to use. There is room in the front for me to cut a hole for a speedometer. I'd really like to use something that looks like this.

MR TRIKE · Jul 16, 2016

Mr trike

BMB Guns said:
Ok. This post pertains to my deisel trike build... So, the Spicer 3053a has no output or anything for a speedometer. It's designed to feed a divorced transfer case and the speedometer is attached to it. I've seen speedometers that work with a magnet on the front wheel. I would really prefer something that would work off the driveshaft. I've seen analog, electric, GPS (not fond of the GPS idea), sending units that I have no idea what goes with what, etc. I'm totally ignorant to universal speedometers so any help that can be provided would be appreciated.

Hello- VDO makes a 3 3/8" face speedo that works great. I have used hundreds of these in the VW application. On the VW, you JB Weld 6- 1/2" magnets on the CV joint equal distant apart then mount a sending unit so the face is within 1/4" of magnets. Run the 2 wires from the sending unit to back of speedo. Follow the directions in box to calibrate speedo to your tire diameter. This will work great as long as the 1/4" spacing is constant." Keep-On-Triken"