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Extra-Long Model! 1969 GMC Quad Cab Stepside


This pickup is a little unusual, isn’t it? I’m not sure if this is a custom conversion or some sort of factory option that I’m not familiar with, but using two side doors on each side is an interesting solution, don’t you think? This truck is pretty solid and appears totally stock–or at least the way it left the dealership! It’s also being sold without a reserve and doesn’t have much time left as I write this, so you might want to evaluate quickly if you are interested.


So not only it is a quad cab, it’s a step side. That surprised me, but I guess whomever ordered this truck new was more concerned with hauling people than stuff. I’m guessing the camper top wasn’t originally on the truck, but who knows? It certainly is unusual.


Here’s a close up of the use of the two regular doors, rather than a specially constructed rear door. Again, I’m thinking the designer was more concerned with utility rather than appearance! That being said, the more I look at it, the more I think it was a pretty good solution to utilize a door that was already well-engineered rather than arriving at a new solution for what was undoubtedly a very limited production model.


It’s pretty dirty in here! The seller tells us it’s been sitting in a building for the last 30 years and was last licensed in 1984. There is some rust in the cab corners, floors and drip rails, but nothing horribly serious that we can see. That’s a four speed, not three speed manual as well.


So here’s the bad news, the original 3500 V6 is seized for an unknown reason. We don’t know why the truck was originally taken off the road, although inability to fit it into a standard parking space may be one reason! Or maybe the turning circle of a Terex Titan? In either case, I’m not sure I’d bother spending a whole lot of time on the original V6, because I’d be utilizing this classic as a tow vehicle when our race team heads out on the road and a modern V8 would be welcome, perhaps even a diesel. What would you do with this interesting truck, available here on eBay at no reserve and bidding at only just over $2,000 as I write.


  1. Chris in Nashville

    Hmmmm… Wish it were not so far away… Might have been interested but don’t have the time to deal with it right now either… But love the idea!

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  2. gord

    interesting, dodge actually did this with their crew cabs, using the front door for a rear door and and with the stepside so… maybe gm though, hey we can do that too

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  3. gord

    here is the dodge version

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  4. geezerglide85

    The Box on this looks to be from an earlier model ’65-’66 maybe? I think these long quad cabs were used by state hiway depts. Otherwise this would be neat with 4-wheel drive, a lift kit, big tires, and maybe a diesel with some stacks. And Rollin’ Coal

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    • Alan (Michigan)

      Well, it might just be the tail-gate that was swapped. But certainly something was, as the back says pretty distinctly “Chevrolet” with the front being GMC.

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  5. Alan (Michigan)

    Strangest looking B-pillar that I have ever seen!

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  6. Chebby

    A good companion piece to the ugly yellow ’69 Chevy van!

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  7. William H

    Factory tach dash. Pretty hard to come by, or used to be when we rebuilt ’68-’72 trucks. It appears to be factory as there are a number of them out there. I find it odd that they didn’t utilize the the 3-door setup from the suburbans instead building that weird B-pillar.

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  8. geomechs geomechs Member

    Love those 17 inch wheels! I’m a little surprised to see the ’61-’66 rear fenders on this. I’ve seen lots of step-sides of this vintage and they had the newer fenders. Mind you I’ve never seen a crew cab of this vintage so maybe GM made an exception. This must have been the last year for the V-6; I’m sure that GMC and Chevy were pretty much on the same page by ’70.

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  9. Charles

    I remember a neighbor who owned one of these trucks back in the late 60’s. He always said that the cab was constructed by an aftermarket conversion company, even though the competed trucks were sold through the GM dealers.

    As geezerglide85 noted, the bed is definitely from an earlier model.

    Considering the highway yellow paint and the aftermarket crewcab conversion, my guess is that this truck started it’s life as a DOT vehicle.

    This truck is an opportunity for someone to build a nice vehicle. The options for GM crate engines are endless. I could see this with a 502 big block, a 4L80 auto, or ZF six speed, 4WD conversion. It would be both cool and functional.

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  10. DREW V.

    I have seen several of these 67-72 crew cabs over the years and every one of them was fabricated after the original truck left the factory… You can tell by pulling the floor covering backor removing the headliner revealing the welded seam of piecing 2 cabs together. GM did make a hand full 6-8 crew cabs in the older body style 64-66 but they used a special rear door like the Dodge shown above that has a vertical instead of inclined window track, Not having the tacky looking filler panel between the doors…

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  11. Charles H.

    Hmmm….looks like it was factory equipped with a Detroit Locker rear differential, as the sticker suggests……as for the factory tach dash, as William H referred to, I believe that is just the standard non-tach dash, but then, I’m no expert either…..

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  12. rmward194 Member

    Here is an old thread, including an ad for one of the companies (dealership) that did the conversions: http://67-72chevytrucks.com/vboard/showthread.php?t=25324&page=2

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    • William H

      Good find on the Scott-Bilt ad on that thread. Interesting information. I wonder if that dealership was the only one building these as I was able to find quite a few of them out there and a lot of them appear to be original. Even found an orange/white long bed. Found a few that have standard rear doors like the ‘burbs instead of that giant B-pillar. Actually, there seem to be a large number of variations on the crews of that era so there were definitely other builders but it doesn’t look like any of the others used front doors all the way around.

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  13. Charles

    Never saw one of these trucks before. Looks like a congomoration of several trucks. Weird rear doors, looks like another set of front doors. If this was a factory order, I guess GM hadn’t engineered a rear door, just used the front door over again! Neat truck!

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  14. JimmyinTEXAS

    Gonna make a nice project for someone…

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  15. Howard

    If I remember correctly only Dodge created the crew cabs in house. Ford and GM would sell thru dealers trucks that been modified by approved outside companies. Most of these vehicles were never bought by the general public, but were sold to the military, forestry service, railroads etc.

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  16. Dave Wright

    This is truly an ugly truck………IHC made as many 6 pac trucks as anyone else. All done in house……I have seen Chevrolet Suburban type trucks with 4 doors and a pickup bed that looked factory in Mexico. They didn’t look bad.

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  17. ron h

    Geezer seems to have nailed it. I remember this cab construction as DOT trucks. I can also attest to the rear fenders being wrong. The correct ones were radiused at both front and rear. Similar to the dodge in gord’s picture. They also had a body line to match the front fenders and doors. Cool truck.

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  18. John

    That engine would be either the 305 or 351 v6. A bulletproof engine but parts might be a problem. What the factory did is take 2 351’s and connect them to make a 702 ci v12. It would be interesting and perhaps fitting for the crew cab.

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  19. stillrunners

    The rear fenders are for late 55 to 66 trucks and most likely it came with a service type bed when it was built. Nice truck though….early GMC V6 later ones would come with a 350/402 up to 1972 then I think the 454 became an option.

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  20. Dustin

    I noticed that the front door is the same as the rear door — very handy (and cool)!

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