Originally Posted by
buddrow
Is the torque converter clutch still coming on after the speedo dies?
If not you need to verify the vss signal is getting to the DRAC from the sensor using a DVOM is fine set to AC volts. Voltage should increase from 0vAC to ~100vAC.
If the TCC is working then the DRAC is fine and you just have a instrument(speedo) issue.
If the DRAC is failing, get the 3 digit code from the DRAC itself, it will be something like QWB, PLK, etc in big bold black letters on a sticker attached the the DRAC.
Check these things and report back.
Buddrow