Chuck, my name is Chris Brown I own C & M Hydraulics all we do is remanufacture MBZ power steering gearboxes, p/s pumps, and air (smog) pumps with electro-magnetic clutches, we have been in bus. since 1994. We only deal with the larger aftermarket parts. dist., however most online dist. can get our parts if you ask. One important thing for you to keep in mind is, the only way to replace the input shaft lip seal is to completly disassemble the gearbox, the seal is installed from the inside. If you have any questions feel free to call. 702.734.8090

Chris