I just bought a 95 f150 supercab longbed 4x4 and the abs light came on a couple days ago I looked up where the sensor was bought a new one and put it in and it made things worse my speedo jumps with new one but not old one can someone tell me what the heck is going on with my truck? This is my first 4x4 f150

 

Take it to a dealer and have them read the ABS codes.

 

This is the sensor in the rear axle? Did you try the old sensor again? Could be an issue with the wiring connector.