Temp and time fuse the plastic sensor body to the hub casting. Removal is destructive. I ordered up a set of used sensors from the auto wrecker online and they shipped 4 complete hubs with sensors, and they ate the big shipping cost. The shop ruined 3 in the removal process. The front and rears have different length wire leads. The right and left have different mounting brackets, but can be changed with a little work. Isuzu did a bad design and the part cost is very high. Other trooper models use the same sensors, if you want to hunt for used. See my old post on the subject.
Good luck, Roy