Originally Posted by Mark_R
Are you happy with the results? With 4:88 gears and 315 75 R16 MT/R's my speed reads high, would really like to get it back to near stock without to much fuss.
Mark R, the physical installation is very easy. Once installed you need to calibrate the unit which is also easy. Basically you compare your dash speedo at 60 MPH against a GPS for actual MPH. You find that difference on a supplied conversion chart that comes with the Speedohealer and input the new calibration factor into the unit and you're done. It doesn' matter what gears or tires you have on the vehicle.