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Labor Day Putting down your wrenches or time for
MORE wrenching? 
Plenty of places to share. | | Click on image for the lowdown. 
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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
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on the Internet for over 30 years! and not clogged down
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| | | | Joined: Aug 2008 Posts: 230 Shop Shark | | Shop Shark Joined: Aug 2008 Posts: 230 | did they ever have back up lights on a 61 gmc with a 4 speed trans .if so how was it hooked up ,if not how can they be hooked up ?thanks | | | | | Joined: Jul 2001 Posts: 3,887 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Jul 2001 Posts: 3,887 | first item here - mechanically actuated by the shifter Bill | | | | | Joined: Aug 2008 Posts: 230 Shop Shark | | Shop Shark Joined: Aug 2008 Posts: 230 | that had me stumped ,and now this clears the fog away from my brain !i wonder if this is still available with the harness ? | | | | | Joined: Nov 2002 Posts: 1,002 Shop Shark | | Shop Shark Joined: Nov 2002 Posts: 1,002 | I've heard reports that the 67 SM420 had a reverse switch, or are the links "Mother Trucker" switch it?
Larry
I don't own a vehicle that isn't old enough to drink.
| | | | | Joined: Feb 2008 Posts: 14 Wrench Fetcher | | Wrench Fetcher Joined: Feb 2008 Posts: 14 | That GM backup light switch posted by M.T. will work on any SM 420 4 speed from 1947 to 1967. http://www.novak-adapt.com/catalog/sm420_parts.htmWe just thought it was important to dispel the mis-information posted on this subject earlier.  | | |
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