Power Window Wiring Routing

JPWally · Dec 9, 2024

I didn't see much on this topic in my searches or in the MPC. I am adding OEM power windows to my 1972 Fastback. All the donor hardware and wiring came from a 73 Fastback. Could anyone confirm as to where exactly the power window door wiring harnesses (reference the two special, molded-on straps circled in the attached photo) fasten to the door inner panel? Perhaps this car does not have all the provisions to attach this harness and I need to add them?
Thank you in advance!

JPWally

Hemikiller · Dec 10, 2024

This is the passenger side view from the Electrical Assembly manual. There are pre-punched holes for the fasteners and the hook on the inner strap.

Steve McMahan · Dec 10, 2024

I’m not sure if there’s a diff between 72 and 73, but here is a pic of the inside of the drivers door on my 73 Vert:

I think that shows what holes those two harness brackets go through.

Doug's 73 Mach1 · Dec 12, 2024

Sounds like your converting from manual crank to power windows. In addition to the wiring and power window motor regulator assemblies you will need door windows made for the power window option. Power window door glass has large half moon cut outs on the bottom edge to provide clearance for the regulator. Crank windows do not. However, the power window glass works on manual crank cars, but not vise-versa.

Steve McMahan · Dec 12, 2024

Thanks for the education Doug, I did not know that.

Doug's 73 Mach1 · Dec 12, 2024

Steve, glad to help. The correct glass should have been in the 73 Mach 1 you obtained the harnesses from. Also power window Mach 1's had the rear side windows powered. Standard Mach 1's had fixed non movable rear side windows. If you are also converting the rear side windows you will need the rear side window guides and regulators/motors. These would have been in that same 73 Mach 1. The same guides are used on coupe and convertible (Mustangs and Cougars) rear side windows as are the regulators/motors. The Mach 1 rear side glass is the same power or fixed. 73 PW switches are different the 71/72 type, but will work fine in 71/72s, just not be "show correct".

rcadd1ct · Dec 13, 2024

I am adding nu-relics power window regulators. They have the motor in a different spot so the glass isn’t an issue.

Unfortunately it is an issue that they mount where I cut out for custom speakers.

Mclinden · Dec 17, 2024

Hemikiller said:
This is the passenger side view from the Electrical Assembly manual. There are pre-punched holes for the fasteners and the hook on the inner strap.

View attachment 95863

I’m also doing a conversion. Where does plug #21 attach? Thanks

Hemikiller · Dec 17, 2024

Mclinden said:
I’m also doing a conversion. Where does plug #21 attach? Thanks

Door ajar warning light system on a Cougar XR7. There's an extension harness that runs from that plug to the door latch mechanism.

Power Window Wiring Routing

Help Support 7173Mustangs.com:

JPWally

Well-known member

Attachments

Hemikiller

Well-known member

Steve McMahan

Well-known member

Doug's 73 Mach1

Well-known member

Steve McMahan

Well-known member

Doug's 73 Mach1

Well-known member

rcadd1ct

Well-known member

Mclinden

Member

Hemikiller

Well-known member

Similar threads

Latest posts

Power Window Wiring Routing

Help Support 7173Mustangs.com:

Well-known member

Attachments

Well-known member

Well-known member

Well-known member

Well-known member

Well-known member

Well-known member

Member

Well-known member

Similar threads

Join the conversation!

Join today and get all the highlights of this community direct to your inbox. It's FREE!