Power window / Door Interchange question..1985 to 1977 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

bulky · 06-11-2007, 02:54 PM

I have a set of 1985 "manual window" doors that I was looking to see if I could put them on my 1977 power window truck. Will the 1977 power window motors mount in the 1985 doors? Are the regulators the same? Any difference between 70's power window motors and 80's power window motors (power or speed difference)? Thanks

**Captkaos** · 06-11-2007, 03:18 PM

the door is the same. Everything will swap. They state that the early model power motors were stronger/better...

Restrorob · 06-11-2007, 10:02 PM

Sorry bulky for the hijack !

Hey Capt, Will these later 77 up power window regulators bolt into my 74 doors ? I bought one of those cheesy Spal conversion kits but have decided not to put that crap in, Just don't like the looks of it.

Thanks

bulky · 06-11-2007, 10:22 PM

No worries..... Hijack away...

I'd answer it if I could, but I'm 100% sure. I think the 74 sheetmetal is different but the internals are the same (dont quote me).

**Captkaos** · 06-11-2007, 10:51 PM

No, the 77-91 power regulators won't bolt into 73-76 doors. The power regulators mount low and 2 of the bolts mount below the where the door panel covers.
Technically you "could" mount them, but unless you found a way to cover those holes, well......

Roper · 06-11-2007, 11:46 PM

Power windows/locks are nice on a new truck but a pain in the butt on a 20 year old truck. You know I just came inside from working at my truck. Tonight I put manual doors on my truck because I was sick of fixing the power doors all the time. There is a bunch of stuff in those power doors that can scew up and there no fun to work with. With mine it seemed like you would fix something on them and then three months later something else wouldv go. Example first it was the wires in the one door, then the wires in the other door. Then it was the lock actuater in the drivers door. Then the lock actuater went in the passenger oor and before I got chance to fix it the window motor went in the passenger door. Anyway I went to manual.

06-11-2007, 02:54 PM	#1
bulky Bulky Join Date: Aug 2004 Location: Rhode Island Posts: 163	Power window / Door Interchange question..1985 to 1977 I have a set of 1985 "manual window" doors that I was looking to see if I could put them on my 1977 power window truck. Will the 1977 power window motors mount in the 1985 doors? Are the regulators the same? Any difference between 70's power window motors and 80's power window motors (power or speed difference)? Thanks __________________ 2016 Silverado 1930 Model A Hot Rod 1923 Ford A/SR Altered - Injected 409 1982 Honda CB900F Super Sport Dad's 1970 GMC 9' Stepside Dad's 1969 GMC Custom Camper

06-11-2007, 03:18 PM	#2
Captkaos www.73-87chevytrucks.com Join Date: Dec 1999 Location: Birmingham, AL Posts: 6,935	Re: Power window / Door Interchange question..1985 to 1977 the door is the same. Everything will swap. They state that the early model power motors were stronger/better... __________________ Chris Lucas 1973 Chevy C-10 1978 GMC Jimmy (2WD) - SOLD 1987 R10 twin turbo LS 1991 R3500 SRW CrewCab 1985 K5 diesel swapped project 1989 K5 2WD conversion w/ Vette susp Project Captkaos Customs 73-87chevytrucks.com

06-11-2007, 10:02 PM	#3
Restrorob The One And Only !!! Join Date: Jan 2007 Location: Hole in the woods Florida Posts: 4,567	Re: Power window / Door Interchange question..1985 to 1977 Sorry bulky for the hijack ! Hey Capt, Will these later 77 up power window regulators bolt into my 74 doors ? I bought one of those cheesy Spal conversion kits but have decided not to put that crap in, Just don't like the looks of it. Thanks __________________ 93 Jeep XJ 88 Buick La Sabra Toys; 88 TA-GTA in the works.... 97 GMC Ext. Cab 502 Crate 5 Spd......Sucks Gas But Haulz Azz ! The primary function of an Engineer is to make it difficult for the Fabricator and impossible for the Mechanic. *"Why go out preserved when you can go out beat up, worn out, sliding in sideways screaming, Holy Sh!t What A Ride" !!!*

06-11-2007, 10:22 PM	#4
bulky Bulky Join Date: Aug 2004 Location: Rhode Island Posts: 163	Re: Power window / Door Interchange question..1985 to 1977 No worries..... Hijack away... I'd answer it if I could, but I'm 100% sure. I think the 74 sheetmetal is different but the internals are the same (dont quote me). __________________ 2016 Silverado 1930 Model A Hot Rod 1923 Ford A/SR Altered - Injected 409 1982 Honda CB900F Super Sport Dad's 1970 GMC 9' Stepside Dad's 1969 GMC Custom Camper

06-11-2007, 10:51 PM	#5
Captkaos www.73-87chevytrucks.com Join Date: Dec 1999 Location: Birmingham, AL Posts: 6,935	Re: Power window / Door Interchange question..1985 to 1977 No, the 77-91 power regulators won't bolt into 73-76 doors. The power regulators mount low and 2 of the bolts mount below the where the door panel covers. Technically you "could" mount them, but unless you found a way to cover those holes, well...... __________________ Chris Lucas 1973 Chevy C-10 1978 GMC Jimmy (2WD) - SOLD 1987 R10 twin turbo LS 1991 R3500 SRW CrewCab 1985 K5 diesel swapped project 1989 K5 2WD conversion w/ Vette susp Project Captkaos Customs 73-87chevytrucks.com

06-11-2007, 11:46 PM	#6
Roper Registered User Join Date: Feb 2005 Location: Alberta Posts: 248	Re: Power window / Door Interchange question..1985 to 1977 Power windows/locks are nice on a new truck but a pain in the butt on a 20 year old truck. You know I just came inside from working at my truck. Tonight I put manual doors on my truck because I was sick of fixing the power doors all the time. There is a bunch of stuff in those power doors that can scew up and there no fun to work with. With mine it seemed like you would fix something on them and then three months later something else wouldv go. Example first it was the wires in the one door, then the wires in the other door. Then it was the lock actuater in the drivers door. Then the lock actuater went in the passenger oor and before I got chance to fix it the window motor went in the passenger door. Anyway I went to manual.



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