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1970 442 power window install questions

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Old Apr 21, 2026 | 05:51 PM
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1970 442 power window install questions

I have some questions on the installation of power windows in my 1970 442. I believe 71 is the same. My car is coming apart so now is the time. All convertibles deserve power windows. I purchased a nice set from a member here. I was cleaning and re taping the harness. The set is from a 71 or 72 I bet because of the style of door switches. Strangely enough I am just finishing up installing a set friends 72. With a 70 there is a circuit breaker on the firewall near the master cylinder. A wire comes through the grommet and attaches to a stud. 72 does not have this. The major question is where do the thick orange with black stripe which I think is main power go? There is a pink wire as well. On 72 these both snap into the fuse box. 🗃️ the assembly manual does not really show where these go in 70-71. There is also a relay behind drivers kick panel. American Auto wire shows 70-72 harness is the same? Anyone have any experience with this. I’ll include pictures.
Old Apr 21, 2026 | 05:55 PM
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Picture and diagram of the circuit breaker.


Old Apr 21, 2026 | 05:59 PM
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Orange and pink wires that need a home
Old Apr 21, 2026 | 06:04 PM
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72,and Buicks used different connectors that allow plugging directly onto fuse box. Connectors only go in one way



Old Apr 21, 2026 | 06:13 PM
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72 even has a jumper wire with connector that allows plugging in 3 power access

ories
Old Apr 21, 2026 | 06:27 PM
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Now I’m seeing in Fusick catalog that drivers side power window harness is different for 70-71. Looks like I’ll be buying a new drivers side harness.

Old Apr 21, 2026 | 08:31 PM
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Drivers side harness

Hold off on that. I may have what you need Dave. I will check on this tomorrow.
Old Apr 22, 2026 | 06:12 AM
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Cool
Old Apr 24, 2026 | 07:04 AM
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No one has any experience with 70 power Windows?
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