56 power top info needed

[Mike M.]

am restoring 56 vin 566 and want to order the repo power top wiring harness. corv central lists a first and second design harness for the 56's. can some poor soul who has dealt with this despicable option relate the differences in the harness? thanks,mike

[John H.]

Re: 56 power top info needed

am restoring 56 vin 566 and want to order the repo power top wiring harness. corv central lists a first and second design harness for the 56's. can some poor soul who has dealt with this despicable option relate the differences in the harness? thanks,mike

Mike -

There may be others, but the only change I'm aware of is the grounding of the pump motor. Early cars had a 12-ga. black wire from the motor to a rear bumper face bar support, and later cars had a #6 braided copper strap from the motor to the LH side exhaust pipe bracket.

[Don G.]

Re: 56 power top info needed

Mike

You are probably aware that it is also a good idea to compare all wire terminations of the new harness with the old harness before installation. I learned this the hard way when I kept blowing fuses and finally determined that an assembly error was made at the factory resulting in red and white wires in the wrong terminal position on a rear body harness.

[Scott S.]

Re: 56 power top info needed

Mike, I have seen late 1956 Corvettes with the 1957 style limit switches that had the roller micro switches. This might be the second design?
Scott

[Dan D.]

Re: 56 power top info needed

Mike, Corvete Central's harnesses are for sure made by Lectric Limited. One person at LL that I found very technically knowledgeable and helpful when I was investigating T3 bulbs was 'Greg' - (708)563-0400 x307 at LL.

Also, with that low VIN number, I would think your car probably has the first design. -Dan-

[Richard M.]

Re: 56 power top info needed

Mike, This may not be very helpful as yours is a '56, but here are photos of the top wiring on '57 vin 44xx built in early June. A friend owned it and sold last year.
Rich
....there are also other photos of limit switches, etc in this Link.

[Mike M.]

Re: 56 power top info needed

thanks toi all respondants. think i'm gettin a handle on this RPO.mike

[Gary C.]

Re: 56 power top info needed

Mike,

As John Hinckley pointed out 56's had the motor ground wire on the driver side rear bumper bracket in the trunk in addition to the tail light ground. As far as I know that should be the only difference.

As you know the reproduction terminal and connectors are not very correct.

Gary
....

[Mike M.]

Re: 56 power top info needed

Mike,

As John Hinckley pointed out 56's had the motor ground wire on the driver side rear bumper bracket in the trunk in addition to the tail light ground. As far as I know that should be the only difference.

As you know the reproduction terminal and connectors are not very correct.

Gary
....

there were two, possibly three different harnesses used on the 56 with power top. i'm working on differentiating them. stay tuned.mike