My speedometer bounces around, especially when it gets above 40. I changed the abs speed sensor on the diff as well as the output speed sensor on the transmission. Reset the PCM and no help.

I searched for other threads and the abs sensor seemed to fix their problems. I read somewhere else that they blew out the moisture in the abs controller connector and that helped. I'm going to give that a shot but I thought I would see if anyone has any ideas? Bad tone ring?

Edit: Forgot to mention that the abs and brake light will come on occasionally after driving a bit, but gone next time I start the truck.

 

your having the same problem as me...check your rear diff and youll see thet the tone gear is missing some teeth..this is what happened to mine

 

Hmm ok. Just found your thread. Did you pay that shop to get it fixed or did you do it yourself?

 

hey T sorry to reply back so late...i been busy at work lately....no i never got it fix because around here the local shops want to charge me 350-600 to fix it. and well i dont have that kind of money...i know a shop 45 min from here thats going to charge me $180 to do it and its a repputable 4x4 shop...so when i get the money ill take it over there if not 2 of my buddies know how to backlash and they said theyll do it for me