I would be interested in your 85 Delay Switches. My 2 speed switch has failed. I didn't look to closely at the wiper motor. The FSM says that both types use the same motor.
Why did you change to the 86 Harness? Is the switch still in the lower dash, Or in the turn signal stalk?
I thought I was going to add the extra delay wires and delay box to my original harness. Its been some time since I looked at it but I think the extra wire just went between the switch and delay box. The wires from switch to motor were the same... I think...?
67 Charger 383 auto
75 Dodge CNT 800 CAT Diesel
85 W350 Crew Cab 360 Auto
1999 Ramburban 2500 V10 auto