Does anyone know who makes this quick ratio steering worm gear for the GTC? I have had my hands on two of these, and purchased them thru a middle man - and obviously tight lipped on who is making them. I was told overseas - Germany - but don't know. I have a client who has purchased the two and we installed them in his 330 and 365 GTC. He wants to have 2 more on the shelf.......if we can buy direct. Any thoughts or leads?