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JEGS Mechanical Speedometer Converter with Built-in GPS


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Mechanical Speedometer Converter with Built-in GPS
SAVE $68.40
More than 10 available
Mechanical Drive Speedometer Converter
  • Fits Ford, GM or Chrysler Speedometers Only
  • Built-in GPS
  • Speedometer Drive Cable Not Included
  • Sold Individually
  • Free Shipping - Ships

    41800 is rated 4.5 out of 5 by 19.
    Rated 5 out of 5 by from question my odo reads 00000 and my speedometer does not work, if i purchase this will speedo and odo start working?? Will miles start climbing instead of reading 00000?? Or will i just know how fast im going now?
    Date published: 2024-03-20
    Rated 5 out of 5 by from Works great so far! I bought this to allow my original speedometer to work in my LS swapped 1965 Ford Galaxie. I have it hooked to the vss and it is dead on accurate, have not tried the gps feature. Would definitely recommend to keep your dash looking original.
    Date published: 2023-05-10
    Rated 5 out of 5 by from A great product. This was what I needed to get my stock speedometer working in my 72 Monte Carlo with non- stock rear gears (4:11), trans (700R), and tire size. For those who don't quite understand how this will work(like I was). Unplug your cable from the trans( find something to cap the trans). Reroute cable to somewhere water proof and plug it into the Jegs box. I removed my dash cover and mounted it on top of the glove box. Then run the antenna to a proper spot (mine is mounted under the dash cover right next to windshield.) Works great. Wish I bought it years ago instead of watching GPS on smart phone.
    Date published: 2021-12-29
    Rated 5 out of 5 by from Worth it in my opinion The price is kinda high, but someone put in the work and produced a quality product, used on an 86 Ford Ranger with a 302 with a 5 speed with only a speed sensor, it worked and would recommend to anybody!
    Date published: 2021-12-07
    Rated 5 out of 5 by from I purchased this for a 71 chevy c10 with a 6.0 ls and 4l60 out of a cadillac escalade. I wanted the stock speedo to work. I wired per the directions using the gps antenna only and this product works fantastic.
    Date published: 2021-09-20
    Rated 5 out of 5 by from Perfect! One of the best things I have bought. Super easy to setup and worked perfectly right out of the box! Speedo reading is spot on!!
    Date published: 2021-07-01
    Rated 5 out of 5 by from This speedo is bomb I have a Camaro transmission in my C10 that was electronic speedometer so it didn't Jive. This solved all my my problems highly recommended
    Date published: 2021-04-01
    Rated 5 out of 5 by from GPS hookup was a breeze! The first unit I purchased ended up being faulty, I called mega customer support and walked through my installation process, the tech helped me trouble shoot just to make sure I had done everything correctly (it’s three wires) once I walked him through everything (two seconds) he said easy send it back your unit is faulty. Got the new unit (due to storms it was snail mail). I hooked it back up to the wires previously run and bam I was cruising down the road with a working speedo. I installed this into a 1951 GMC that has a lS 5.3 and a 4L60e transmission, my gauges are original (professionally reconditioned) and I wanted to stick with them, this little unit let me do that. Also this thing makes no noise, I had a gearbox installed in another project (a different vendor and make) and that thing was louder than my M122 rock crusher tranny. I would highly recommend this to anyone who wants to maintain that stock look without after market gauges.
    Date published: 2021-02-22
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    Can this mechanical speedometer converter be adapted to run a cable driven tachometer using a signal pulse from a GM LS engine controller?

    Asked by: Fast Mike
    The Jegs 555-41800 converter does not work with tachometers.
    Answered by: jshook
    Date published: 2024-03-08

    Will this work on my57 chevy with a muncie 4 speed and stock speedo?

    Asked by: Muttly
    The Jegs 555-41800 adapter does not work with a stock speedometer.
    Answered by: jshook
    Date published: 2024-02-25

    Will this adapt a GV overdrive unit to an aftermarket electronic speedo? 70's dodge truck restomod.

    Asked by: Moose77
    The Jegs 555-41800 converter works with factory GM, Ford and Chrysler transmissions.
    Answered by: jshook
    Date published: 2023-11-13

    Will this work on a 1980 Oldsmobile Cutlass Supreme?

    Asked by: Spyder
    The Jegs 555-41800 conversion kit will work on an '80 Cutlass.
    Answered by: jshook
    Date published: 2023-10-11

    Does the anti need to be mounted out side the truck or can it be mounted inside on the dash?

    Asked by: Sonny
    The Jegs 555-41800 converter can be mounted where space allows.
    Answered by: jshook
    Date published: 2024-02-25

    Can this be adapted to work with a 1950 international harvester truck speedometer?

    Asked by: Tuccitown
    The Jegs 555-41800 speedo adapter will only work on transmissions with 7/8 - 18 thread.
    Answered by: jshook
    Date published: 2022-09-19
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