I didi a search and came up with some things to check but wanted to run it by y'all to see if there was anything else. I started having problems with my speedometer the oter day, I noticed that I had everything except for speedometer reading, then every once in a while it starts to jump around and then it will work for a little while and stop. I have checked all the fuses I think is related but came up with zilch! Does anyone have a clue what could be going on or is there a relay or fuse I may be missing? Thanks for the help.

 

Check the connection on top of the rear differential. It reads the tone ring inside.

 

Thanks I will try that!

 

Check for codes. key off/on, off/on, off/on leave in the on position the last time . Codes will show in the odometer screen.

 

I have a speedo problem too. When I'm not looking, it shoots up to 80mph!! Dang Smarty.......

Sorry I can't help with the issue. Post what you find out about the connection on the diff.