Gen 1/2 Seat Plate

[speedtoys]

I bought a used Corbin seat..not a bad seat..but..

Only the upper two bolts to the plate match, the lower two do not, and corbin doesnt fit with the two front studs that further locate the seat, either.

:/

I guess I dont mind having to center the seat to secure it to the latch, but..ARE there different plates??