My ABS light is on and I've changed the fuse and relay where is the sensor at. Can someone take a pic of its location for me. My truck I thought was only rear ABS but it has a the relay for 4 wheel how can I tell if its 2 or 4 wheel ABS here is a pic of my master cylinder I thought that 4 wheel ABS had a plug on it. Ohh and my rear wheels lock up so there is something wrong just dont know what to do next. My rear end is 7.5 if that matters where the sensor is.

 

While I do find it interesting that you have no Cruise Control cut-off pressure switch on your master cylinder, your ABS problem could easily be the sensor on top of the rear axle. It's called the VSS and cost about $20. One bolt holds it into the top of the pumpkin. I'd at least remove it and see if it looks like it has hit the gear.

You have 4WABS, it looks just like mine.

 

Doesnt even have to hit the gear to be bad. Mine looked fine. Changed it and light went out.

 

cool thanks for the help. I thought the sensor that was on the master cyl. was for abs not cruise i dont have cruise thats why i dont have the sensor.

 

Can you repost that picture? I'm curious about something similar

 

can anyone else see the pic I see it fine?