How hard is it to change out the front speed sensors? My ABS and Parking Brake lights come on every now and then. I think it's time to change them but not sure what to do. Any advise? Is it purely a plug and that's it? Do I need to take the front wheels off or just get underneath the truck?

 

take the wheel off, its bolted in with an allen head screw on the hub un plug and plug in the new ones, make sure you don't get dirt in the hole for the senors, so clean it up well first. Also I was told to put some electronics grease on them first.