These enable a builder to easily sense wheel speed, useful for managing a traction control system, ABS or a different kind of spped sensor for aftermarket speedometers.
They are a slip-on fit over the CV joints, so they only are applicable for the rear wheels- you must use a different method to detect wheel speed for the front wheels.
These are not typically stocked, and will be drop-shipped when ordered, so please allow additional time to receive the product.
???Will to update how front etc. works
Price is per ring.