So I have the trac control and ABS lights on the dash. Scanned the system and came up with 3 right rear wheel speed sensor and 1 left rear wheel speed sensor. Is the sensor built into the rear wheel bearing like the front? Can I or should I just change the sensor?

I believe the wheel speed sensor is integrated in to the hub assembly.

If you are not having any other issues with the rear hubs, I would recommend ruling out the wiring harness before throwing hubs at it, mainly to avoid the "lets throw parts at it and hope it works" factor.

Also keep in mind too that the 2000+ Gen loves to crap hubs, so if you haven't checked them for actual bearing issues, you should. If it'* crapping the hubs/bearings, replace them. Also, there is data on the forums to guide you which brand to get, and I can't remember which brands to avoid.

Randall is correct, the speed sensor is built into the bearing/hub, just like the fronts are. It is not a separate serviceable part, and to replace the speed sensor you have to replace the hub. If you go that route, I suggest Timken bearings, and rockauto.com probably has the best prices. We have a write up on the forum showing an easy way to get the old hub out if it is stuck in place and won't come out. Let me know if you need it and I will dig it up for you.


I also suggest replacing both sides, not just the right. If one failed, the other is not too far behind.