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  • Gauge Accessories
  • Gauge Applications
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  • Speedbox
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    • Speedbox

    Run your classic cable-driven speedo with modern GPS or VSS. The SPEEDBOX™ drives your original speedo cable — no transmission hookup needed.

    • Works with most cable-driven mechanical speedometers
    • Accepts GPS or VSS signal
    • One-button calibration for quick, accurate setup

    Made in the USA Lifetime Warranty • Instructions • FAQ

    • GPS Antenna with 9.8 ft long cable and male SMA connector

      GPS Antenna with 9.8 ft long cable and male SMA connector

      A-140

      Note: All GPS speedometers include an antenna with purchase.GPS Antenna features: SMA connection 48 x 40 x 13 mm, 9.8 ft coaxial cable High-performance active GPS antenna Low noise figure and high gain coverage No antenna know-how necessary Waterproof...

      $66.88
    • GPS Antenna with 5 ft long cable and male SMA connector

      GPS Antenna with 5 ft long cable and male SMA connector

      A-340

      Note: All GPS speedometers include an antenna with purchase.GPS Antenna features: SMA connection 48 x 40 x 13 mm, 5 ft coaxial cable High-performance active GPS antenna Low noise figure and high gain coverage No antenna know-how necessary Waterproof...

      $66.88
    • GPS Antenna with 15 ft long cable and male SMA connector

      GPS Antenna with 15 ft long cable and male SMA connector

      A-339

      Note: All GPS speedometers include an antenna with purchase.GPS Antenna features: SMA connection 48 x 40 x 13 mm, 15 ft coaxial cable High-performance active GPS antenna Low noise figure and high gain coverage No antenna know-how necessary Waterproof...

      $66.88
    • Mechanical Drive Cable, Clip-on, fits GM Speedometers

      Mechanical Drive Cable, Clip-on, fits GM Speedometers

      A-283

      Drive your original GM mechanical speedometer (not included) from GPS signal using this cable and our SPEEDBOX™! Compatible with the "CLIP-ON STYLE" mechanical speedometers. Cable is 3ft in length and can easily bend to mount the SPEEDBOX in a convenient...

      $96.12
    • Mechanical Drive Cable, Clip-on, fits Ford Speedometers

      Mechanical Drive Cable, Clip-on, fits Ford Speedometers

      A-284

      Drive your original FORD mechanical speedometer (not included) from GPS signal using this cable and our SPEEDBOX™! Compatible with the "CLIP-ON STYLE" Ford mechanical speedometers. Cable is 3ft in length and can easily bend to mount the SPEEDBOX in a...

      $96.12
    • Mechanical Drive Cable, Clip-on, fits Chrysler Speedometers

      Mechanical Drive Cable, Clip-on, fits Chrysler Speedometers

      A-285

      Drive your original CHRYSLER mechanical speedometer (not included) from GPS signal using this cable and our SPEEDBOX™! Compatible with the "CLIP-ON STYLE" Chryster mechanical speedometers. Cable is 3ft in length and can easily bend to mount the SPEEDBOX...

      $96.12
    • Mechanical Drive Cable, Thread-on, fits M12 x 1 Speedometers

      Mechanical Drive Cable, Thread-on, fits M12 x 1 Speedometers

      A-348

      Drive your original M12 x 1 mechanical speedometer (not included) from GPS signal using this cable and our SPEEDBOX™! Compatible with the "THREAD-ON STYLE" M12 x 1 mechanical speedometers. Cable is 3ft in length and can easily bend to mount the SPEEDBOX...

      $96.12
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