After buying a 1990 Heater box from another member,
I found out that the later model year "L" bodies used the same box for A/C and non-A/C applications.
So, to be clear,
I need an early model year heater box for an "L" body.
I'm thinking 85-88???
This box will be about 15"(inches) long and 12" high,
and have a heater core and blower motor only.
(I can do without the blower and core for weight in shipping savings)
I really only need the plate for the blower motor(as circled in red above),
but I'm thinking if you have the whole outfit, I might as well buy it.
Thanks for the help, in advance.