BRAND NEW. Speedometer corrector for tire size adjustment. adjust for nearly every size. works for at least 80 and 100 series trucks, or any vehicle with a hall effect sensor. $180 from Marks 4WD in AUS. $115 shipped to the lower 48. additional shipping if going farther. Can easily be sliced in to the harness behind the glove box for an 80 series. I can supply all crimp connectors if you need them for free.
from their website:
Electronic Speedometer Correction Unit
The new Marks 4WD Speedometer Correction Unit is the first of its kind for a few reasons:
from their website:
Electronic Speedometer Correction Unit
The new Marks 4WD Speedometer Correction Unit is the first of its kind for a few reasons:
- Enter your factory tyre size and then your new tyre size - the unit will calculate the required change
- Enter tyre details in metric (265/75 r16) or imperial (33x12.5 r15)
- Adjust by a percentage change only
- Adjustable in 0.5% steps so you can get your speedometer set accurately
- LCD display
- You can adjust and save the programs in real time while driving the vehicle
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