Another benefit of the later C4s is the use of antilock brakes. Corvette Central provided a set of its wheel bearings. We opted for the 91-96 bearings because they have the wheel-speed sensor and plug contained within the bearing. This car will have ABS, so the sensors are necessary. We used the front suspension from an 85, so we needed to remove the material from the back of the steering knuckle to provide room for the sensor plug, and the bearing bolts are more vertical instead of horizontal like they would be on a 91-96 knuckle.