Highlander

I wish to install wheel speed sensors on the rear. My car, being a 94 only came with a wheel speed sensor on the middle.

I have a strange which has the ls1 backing plates AND the reluctor rings on each axle. Can anyone post a picture on where the ABS sensor is bolted, is there a hole on the backing plates as I "assume"?

Thanks

Chris

FirstYrLS1Z

LS1 backing plates are of two varieties,one(3 channel) without the sensor holes as the ABS sensor is mounted at the top of the rear end housing to sense the rotation of the reluctor ring mounted on the carrier,the other variety(4 channel) has a hole in each backing plate to sense the reluctor ring mounted on each axle(for traction control operation).
The axles are different and circuitry is different.

Highlander

From the looks of it.. I have the 3 channel backing plates... I would like to see a picture of the 4 channel backing plates and the size of the hole I would have to drill on them.