My speedo still works so am guessing the rear sensor is still good, not a fuse prob., so I am going to take the sensors off the front of my ,wrecked 2000 3500 with auto, parts truck for me, and try them on my truck. Does anyone fore see a problem? Thanks

a bad rear speed sensor will cause the speedo to not function, will it not?

a bad rear speed sensor will cause the speedo to not function, will it not?

Correct... But a bad front axle sensor will not effect the speedo...

Thanks guys. I'll try the new sensor and get back to the group.

Installed new rear sensor and no speedo abs/brake light still on. Thoughts?

Then something is wrong with the ABS controller or other wiring... Since a OBDII code reader will do nothing for ya you kind of at the mercy of the dealer and letting them plug there DRBIII tool in so that can see the error code on the ABs computer...