Anyone using a Gear Venders O/D unit?

They are a truly great idea and have been around in other guises since the 1960's or so. It called the laycock denormanville overdrive,and gear vendors bought all the rights to it some time ago.You could find these on Volvo's,british cars,french cars,lot's of european stuff. Gas has always been higher there so naturally it created the need for an o.d.

If you find one on an older euro car,thier worth a pretty penny,so dont even think about it...