I have my 1991 Hicas rear suspension intact from my crashed 240. I'm going to try to put it under my 89 body that already has the 91 drivetrain in it. The lines are straightforward but what about the electronics? The wiring from the rear suspension just seems to get lost in the harness. I don't need the entire rear compartment harness just to have Hicas do I?

 

Hicas at least uses a sensor in the steering wheel. I assume it also ties into the speed sensor and possiby ABS system.

These are all things that weren't available in 1990, so it's unlikely that any of the wiring is there.

I would recommend leaving the hicas alone and only swapping the LSD.

-Justin