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[GMCnet] TURN SIGNAL SWITCH [message #326808] Wed, 06 December 2017 14:40 Go to next message
rod utterback is currently offline  rod utterback   United States
Messages: 17
Registered: April 2016
Karma: 1
Junior Member
Ok GMC Gurus,

One casuality of my recent 4,500 mile trip was the turn signal switch at the steering column. I need to replace the old worn switch, but I recall a different version that has turning lamps provision. I hope to use that version to control my left and right side cameras. Does anyone recall the part number for such a turn signal switch? Anyone?

Rod Utterback
1973 Canyonlands 29ft 455 with lots of upgrades
Escondido, Ca.

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Re: [GMCnet] TURN SIGNAL SWITCH [message #326809 is a reply to message #326808] Wed, 06 December 2017 14:55 Go to previous messageGo to next message
Dave Stragand is currently offline  Dave Stragand   United States
Messages: 26
Registered: October 2017
Karma: 0
Junior Member
I found this:

http://gmcmotorhome.info/chassis.html#TURN

TURN SIGNAL SWITCH
AutoZone part number SW326 or SW327.

This is a very common turn signal switch used by GM on vehicles of that
era. It is not GMC motorhome specific.
These are made by Wells. The difference in the two numbers is that one
also included a set of contacts for cornering lights. The cornering
lights are actually a separate connector that plugs into the same switch
that you do not have to use. Wells is actually the manufacturer of the
switch for Delco (GM) . My Wells switch came with the Delco inscription
on the plastic molding.

The problem you will run into is there was two different plugs used on
the connector depending on the year the coach was made. One is slightly
longer and will not plug in. These part numbers from Autozone come with
an adapter to fit both cable connector styles. MAKE SURE THERE IS AN
ADAPTER IN THE BOX WHEN YOU BUY IT. You may need it.

If yours is the opposite plug type and you do not want to use the
adapter, you can remove the pins from the old plastic plug and insert
the new cable pins into it. The pins are the same only the plastic
housing is different.

-----Original Message-----
From: Gmclist [mailto:gmclist-bounces-AT-list-DOT-gmcnet-DOT-org] On Behalf Of rod
utterback
Sent: Wednesday, December 06, 2017 3:41 PM
To: gmclist-AT-list-DOT-gmcnet-DOT-org
Subject: [GMCnet] TURN SIGNAL SWITCH

Ok GMC Gurus,

One casuality of my recent 4,500 mile trip was the turn signal switch at
the steering column. I need to replace the old worn switch, but I recall
a different version that has turning lamps provision. I hope to use that
version to control my left and right side cameras. Does anyone recall
the part number for such a turn signal switch? Anyone?

Rod Utterback
1973 Canyonlands 29ft 455 with lots of upgrades Escondido, Ca.

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1978 Transmode (403) Pittsburgh, PA
Re: [GMCnet] TURN SIGNAL SWITCH [message #326812 is a reply to message #326809] Wed, 06 December 2017 15:40 Go to previous messageGo to next message
Mike Kelley is currently offline  Mike Kelley   United States
Messages: 71
Registered: February 2017
Karma: 0
Member
Hi Rod U.:
Sorry we missed getting together when you were here in Morton. If you ever get back this way again, be sure to let me know - don't want to miss the opportunity again! Sure enjoyed your trip scenario and the positive attitude re: the various challenges.
Keep asking your questions and you will get lots of help/advise - the GMC group is an Awesome group!!!
Mike/The Corvair a holic

Sent from my iPhone

> On Dec 6, 2017, at 2:55 PM, Dave Stragand wrote:
>
> I found this:
>
> http://gmcmotorhome.info/chassis.html#TURN
>
> TURN SIGNAL SWITCH
> AutoZone part number SW326 or SW327.
>
> This is a very common turn signal switch used by GM on vehicles of that
> era. It is not GMC motorhome specific.
> These are made by Wells. The difference in the two numbers is that one
> also included a set of contacts for cornering lights. The cornering
> lights are actually a separate connector that plugs into the same switch
> that you do not have to use. Wells is actually the manufacturer of the
> switch for Delco (GM) . My Wells switch came with the Delco inscription
> on the plastic molding.
>
> The problem you will run into is there was two different plugs used on
> the connector depending on the year the coach was made. One is slightly
> longer and will not plug in. These part numbers from Autozone come with
> an adapter to fit both cable connector styles. MAKE SURE THERE IS AN
> ADAPTER IN THE BOX WHEN YOU BUY IT. You may need it.
>
> If yours is the opposite plug type and you do not want to use the
> adapter, you can remove the pins from the old plastic plug and insert
> the new cable pins into it. The pins are the same only the plastic
> housing is different.
>
> -----Original Message-----
> From: Gmclist [mailto:gmclist-bounces-AT-list-DOT-gmcnet-DOT-org] On Behalf Of rod
> utterback
> Sent: Wednesday, December 06, 2017 3:41 PM
> To: gmclist-AT-list-DOT-gmcnet-DOT-org
> Subject: [GMCnet] TURN SIGNAL SWITCH
>
> Ok GMC Gurus,
>
> One casuality of my recent 4,500 mile trip was the turn signal switch at
> the steering column. I need to replace the old worn switch, but I recall
> a different version that has turning lamps provision. I hope to use that
> version to control my left and right side cameras. Does anyone recall
> the part number for such a turn signal switch? Anyone?
>
> Rod Utterback
> 1973 Canyonlands 29ft 455 with lots of upgrades Escondido, Ca.
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org

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Re: [GMCnet] TURN SIGNAL SWITCH [message #326822 is a reply to message #326808] Wed, 06 December 2017 18:58 Go to previous messageGo to next message
RF_Burns is currently offline  RF_Burns   Mexico
Messages: 1441
Registered: June 2008
Location: S. Ontario, Canada
Karma: 6
Senior Member
I replaced mine just over a year ago. From Ken Burton at the time, SW326 is with cornering lights and SW327 is without.

My parts guy crossed the SW326 (with cornering lights) to a Blue Streak TW8. For some reason, with the extra corning light contacts it was less money!


Bruce Hislop
ON Canada
77PB, 455 Dick P. rebuilt, DynamicEFI EBL EFI & ESC.
Hubler 1 ton front end
http://www.gmcmhphotos.com/photos/showphoto.php?photo=29001
My Staff says I never listen to them, or something like that
Re: [GMCnet] TURN SIGNAL SWITCH [message #326824 is a reply to message #326822] Thu, 07 December 2017 00:29 Go to previous messageGo to next message
Ken Burton is currently offline  Ken Burton   United States
Messages: 8381
Registered: January 2004
Location: Hebron, Indiana
Karma: 31
Senior Member

The same is true on the Wells switches from AZ. The one with cornering lights is a few dollars cheaper.

Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
Re: [GMCnet] TURN SIGNAL SWITCH [message #326834 is a reply to message #326824] Thu, 07 December 2017 09:21 Go to previous messageGo to next message
Jp Benson is currently offline  Jp Benson   United States
Messages: 521
Registered: October 2011
Location: Fla
Karma: 3
Senior Member
I recently purchased the AIRTEX/WELLS 1S3020 (SW326) Turn Signal Switch from Rockauto. Glad to know it has the cornering light option if it's ever needed. The one minor annoyance was that the connector plug didn't mate to the socket on my 76 Royale steering column. I had to extract all the pins and insert them into the old plug. An adapter is available but I don't want extra hardware that doubles the number of connections.

JP
Re: [GMCnet] TURN SIGNAL SWITCH [message #326852 is a reply to message #326834] Thu, 07 December 2017 13:48 Go to previous message
Ken Burton is currently offline  Ken Burton   United States
Messages: 8381
Registered: January 2004
Location: Hebron, Indiana
Karma: 31
Senior Member

Jp Benson wrote on Thu, 07 December 2017 09:21
I recently purchased the AIRTEX/WELLS 1S3020 (SW326) Turn Signal Switch from Rockauto. Glad to know it has the cornering light option if it's ever needed. The one minor annoyance was that the connector plug didn't mate to the socket on my 76 Royale steering column. I had to extract all the pins and insert them into the old plug. An adapter is available but I don't want extra hardware that doubles the number of connections.

JP

Yes that is a problem and it appears to be random on which coaches got which connector type installed. Actually the switch fits most GMCs without moving the pins. On the others moving the pins is the easiest solution. I always check the plug mating BEFORE pulling the wire down through the steering column. It is as lot easier to change them not mounted and in your hand rather than doing it standing on your head under the dash.


Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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