Description
GM / Dodge Ratio Adapter, Select the Slow Down Rate for your specific application.
#54RA.
This GM / Dodge ratio adapter will slow your speedometer reading down.
Made for low rear end ratios with short tires.
Can be made to offset for clearance reasons. This part will slow down your speedometer reading.
It is only made to go to the transmission or transfer case and not behind the speedometer head.
Use -37.5% to convert Kilometers to MPH.
If you need assistance with figuring out which percentage you need, please call us with these speed readings:
| When your GPS shows: | What your Speedometer displays: |
| 40 mph | ?? |
| 50 mph | ?? |
| 60 mph | ?? |
Please be sure to give us these readings in this EXACT order (40,50,60 GPS vs speedometer) to prevent receiving the incorrect percentage.
For information, please call 888.201.2066 or send an email to jim@transmissioncenter.net
For Speed Up Ratio Adapters, click HERE!
Click HERE for the Main Speedometer Gear page!
