OD trans

Dear Lord Jesus.

"THAT" said, the only point I'll make is that the A833 4 speed OS is NOT and never has been a "3 speed with overdrive". It is a 4 speed transmission and always has been. It has the A833 designation, which is Chrysler's designation for a 4 speed transmission. Call them what you will, but 3 speed is not correct.
Agree. Same with the 500 and 518 trannys. They are 4-spd trannys, not 3-spd with overdrive. A 727 with a GV OD is a 3 spd with OD. With that setup you 1st and 1st in OD. With the 518 and 833OD you don't.