Delay wiper module interchange

[68 TT]

Anybody know if the 83-87(91) delay wiper module will work with a 77-82 dash mounted delay wiper switch?

I have an auto trans delay wiper column assembly and wiper motor from an 86 for use in my 78.

I really want delay wipers but don't want to do the column swap until I can do the auto trans and pedal change job at the same time.

If the newer delay box does not work with the older switch any idea of possible donor vehicles that would use the same delay module for the older delay switch? I assume it is pretty universal within GM but you never know.