P-A-S-S-O-N
No letter I in his name.
That's for the OP.

Also for the OP: It's great your customer/friend/whatever is willing to take a hit selling off his kit that will work with some mods to the vehicle AND waiting for at least a year for the Passon transmission. Or did you explain that to him?

Maybe the Passon kit to convert a 4-speed to the 4-speed overdrive will suffice, but it ain't cheap either.

Either way, I wish you luck.

R.