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Pyrotechnic · 03-13-2008, 05:22 PM

Actually...the 77 and down wiper motors are quite different from the 78-83 motors. I tried to put a 78-83 motor on a 77 and it wouldn't work. The connectors don't match up, and there aren't even enough wires. Same on the switch side, the 77 connector is incompatible with the 78-83 switch.

In order to perform the swap, I had to remove all the wiring from the 78 and transfer it to the fuse box of the 77. Also had to enlarge the switch hole in the dash and drill new mounting holes.

03-13-2008, 05:22 PM	#8
Pyrotechnic Registered User Join Date: Feb 2007 Location: Austin, TX Posts: 3,930	Re: changing 2 speed to delay wipers Actually...the 77 and down wiper motors are quite different from the 78-83 motors. I tried to put a 78-83 motor on a 77 and it wouldn't work. The connectors don't match up, and there aren't even enough wires. Same on the switch side, the 77 connector is incompatible with the 78-83 switch. In order to perform the swap, I had to remove all the wiring from the 78 and transfer it to the fuse box of the 77. Also had to enlarge the switch hole in the dash and drill new mounting holes. Last edited by Pyrotechnic; 03-13-2008 at 05:27 PM.