TKO 600 ....Anyone done one?

Richmond looks interesting but the 5 speed is 1 to 1 final ratio. No good for my 4:30 gears, the 6 speed is much larger. Interesting though is that when I took the pumpkin out to inspect it after buying the car, the ring gear had the double diamond stamped in it. I didn't know who the manufacturer was till looking on the Richmond gear site.... bingo! Kev