I bought one used in 1984 from a buddy of mine. I used it for tons of passes and street miles in a couple different cars.

Used GER in '92 when I was building a Trans Am for another buddy. First, they shipped the wrong transmission and refused to exchange it unless we paid freight back, and then, after they finally sent the right trans, the converter didn't last 6 months on the street before it destroyed itself and the trans.

Too many good converter companies out there to take chances with GER.