9 pin connector - dash cluster - 69 'Cuda

You'll need to remove 2 screws from back of speedometer and carefully separate the housing and bezel with the speedometer still in the bezel. then you can hold the shaft and unscrew the trip knob. There is a rubber isolator at those 2 screws between speedometer and housing. Little rubber washer at that reset stem too. Be sure these are in place at reassembly.