56 Original Power Window car?

[Edward M.]

My 56 (# 2117) was originally a two four, powerglide, parking brake warning, courtesy lights, power top, hard top, heater, radio, windshield washers optioned car.

Enough of the original equipment remains (in some cases all of the original equipment remains) to confirm these options.

Last night, for the first time, I noticed two holes drilled in the top of the firewall on the passenger side. This is original, unmollested fiberglass in this area. The location is precisely where the power window relay would have been mounted.

I cannot find any other indication that this car originally had power windows. The window regulators in the doors are for manual windows.

So, did the factor drill the power top relay holes for all cars, regardless of window type, or is this a reasonably good indication that my car had power windows originally.

I didn't think to check and see if anything had ever been screwed into those holes. I'll do that this evening.

Thoughts?

[Michael A.]

Re: 56 Original Power Window car?

Hi Ed,

I believe the power top also ran thru that relay. The wiring for my no. 10 car is all wadded up in a box or I would say for sure. Some of the other members might be better able to advise you.
Later Mike

[Jerry B.]

Re: 56 Original Power Window car?

Hi Ed, I To Have An Original 57 Power Window Car. There Maybe Several Other Ways To Determine Original Equipped P/w Option. Awhile Ago, I Replaced The Wiring Harness For P/w. I Noticed Two Things: One:there Were Two Screws That Held The Conduit To The Front Door Leaving Two Holes. Two: There May Be Traces Of The Retainers Used To Secure The Harness To The Inside Of The Fiberglass Door Panel. Maybe Your Door Was Replaced Over Its 52 Years Life. These Were My Observations.

[Gary C.]

Re: 56 Original Power Window car?

Ed, holes are for the power top and power window (if so equipped) circuit breaker. Info's in the JM. Gary....

[Edward M.]

Re: 56 Original Power Window car?

Ed, holes are for the power top and power window (if so equipped) circuit breaker. Info's in the JM. Gary....

You assume I actually read the JM....
Thanks, that does explain it.

[Roy B.]

Re: 56 Original Power Window car?

You'll see two holes for a relay if it had
1 power windows
Or
2 power top
Other wise no holes
If it did have power windows you'll have holes in the door post area that the wire conduit passed into when you close the door and the (door) were the power switch is located will have a square cut out with a metal box.
pic. is 56 PT parts but relay the same

[Dan D.]

Re: 56 Original Power Window car?

You say your car has a power top (most 56's did), so the relay and wiring should still be there for the top. Trace out the top wiring to find how it gets its juice. -Dan-

[John H.]

Re: 56 Original Power Window car?

Ed -

Here's the power top circuit breaker on a '58.

[James O.]

Re: 56 Original Power Window car?

For 1959, if the 2 mounting holes are there but only appear to be 1/32" dia like no screw was ever inserted, does that mean car had power top and/or windows or are they just pilot locator holes that were put on all bodies?

[Mike E.]

Re: 56 Original Power Window car?

Pilot holes for all cars up through 62. Generally a couple of drops of resin on those holes close them up on non-power option cars. Sometimes that was done very sloppily, other times it's unnoticable that it was done.

[James O.]

Re: 56 Original Power Window car?

thanks. that explains it.

[David A.]

Re: 56 Original Power Window car?

i do have this circuit breaker on my firewall
without any wires attached to it!
i do not have power windows
but i did have a power top.

Q the wiring diagram shows a tan wire coming off
this breaker for the power top.
where does this tan wire go thru the firewall?
i see here the red wire goes thru the large grommett
nearest the circuit breaker.

i've looked at many pictures of the firewall on the
C1 registry site, and all the tan wires off this CB
go down somewhere below the wiper motor

thanks
iowa

[Jim K.]

Re: 56 Original Power Window car?

Hi Dave; The tan wire goes from the circuit breaker , passes through two wiring harness clips under the wiper motor, then goes through the 4-hole
grommet in the firewall just above the ballast resistor, then attaches to the power top switch under the dash. This grommet also has a cable for the wiper motor and the oil pressure line passing through it. If you have an assembly manual you can find the tan wire routing on page K232. Hope
this helps. Regards, Jim

[David B.]

Re: 56 Original Power Window car?

I believe that with the power top 56-57's you will also find two holes drilled in the underside of the dash where the switch was attached. I believe these were only drilled for the power top cars, but am open to correction on that.

[David A.]

Re: 56 Original Power Window car?

thanks for the help
i just got my AM today!
and it does show the route of the tan wire
but shows it going thru a 2 hole grommet;
and it is unclear just where the firewall hole is.
i'll put it thru the 4 holer
iowa