What is all needed to do the 91 up harness in a 90 body

[silver bullit]

I have everything
91+
dash with harness
engine harness
all the sensors
ecu
mpfi

I have one quick question does the Harness that sits on the body bolted to the frame under the dash(BUT NOT BOLTED TO THE DASH JUST THE ONE THAT IS BOLTED TO THE FRAME UNDER THE DASH) have to be switched out?

I searched vfaq and it kept saying i was forbidden.

 

[silver bullit]

Well anyone know? I really need to get this done or get the frame harness in the mourning from a donor car.

 

[ROOKIE1]

Wow , no idea . But if the 90 wiring is needed . You can have mine if you want to come and take it out.

 

[silver bullit]

Nah, your to far id rather do a 91 up harness cause its easier to find parts cause there are more cars to choose from.

 

[ROOKIE1]

Thats cool I don't blame you . I will be sending it to the crusher soon though .