Very. The repair kits replace certain wear-prone parts but the printed circuit board – the backbone of the device, is not included. For the serviceman in the pit, this means wasting time and money by sending the vehicle to a body shop to perform “electrical” repairs. Even the body shop mechanic will find this time-consuming rebuild will result in a less than favorable fix. For example, the push buttons are integrated into the printed circuit board (PCB), and cannot be replaced, however, with our proprietary restorative processes, they can be repaired. Often there is damage to the PCB itself, which is something no transmission shop, body shop, or field service mechanic is outfitted to repair. We specialize in these repairs, and take these shifter boxes down to the component level, restoring them to a better than new condition. The shifter or ECU you send in for rebuilding with us will probably outlast the remaining service life of the equipment it came from.