If you install a newer transmission that does not have a vehicle speed sensor built in you will need to get a speed signal to both the cluster and ECU and we recommend the VSS Pro to do this task.
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The VSS Pro is designed to act as a digital signal processor that can measure the frequency of the ABS tone signal and convert it to a modern vehicle speed sensor signal. This allows the vehicle’s ECU and speedometer to accurately read the ABS signal.
 
Note: If you have a pre 2007 chassis and a post 2008 transmission you will need a VSS Pro to get the speed sensor working