CK5
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Pictures of DRW trucks, work’n trucks, etc…
- Thread starter tarussell
- Start date
Another DRW square
The really old one is a 1938 “Big-Jimmy” GMC and the newer-ish firetruck is a 1981 C7000 GMC - I assume that the ‘39 is restored but ya’ gotta appreciate just how good of shape most fire departments keep their equipment up.
The two-tone brown and tan C-30 is just like the pic from the brochure - thought that was kinda cool.
The other two brochure pics show the optional “Blazer type” rear bumper on a C/K-30 - popular retrofit but a little rare to see as built/ordered.
The ‘78 C-30 has gotta loose that shell on the back !
The two-tone brown and tan C-30 is just like the pic from the brochure - thought that was kinda cool.
The other two brochure pics show the optional “Blazer type” rear bumper on a C/K-30 - popular retrofit but a little rare to see as built/ordered.
The ‘78 C-30 has gotta loose that shell on the back !
Would make a great driver…
A few OLD work’n trucks on the job.
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Some Square DRW rides.
A few pre Square trucks
Don’t know if the pic is presented backwards or if the Dana/SPICER chunk is supposed to be driver-side drop?
Notice the front HO52/72 chunk on this 4WD conversion.
Don’t know if the pic is presented backwards or if the Dana/SPICER chunk is supposed to be driver-side drop?
Notice the front HO52/72 chunk on this 4WD conversion.
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And some of them trucks “lifted” in the wrong direction…
Some GMT-400’s
Ford in progress and a 1ST Gen Dodge Cummins that has been worked fairly hard.
Few more brochure pics
Nicely painted Squares
More Squares
Notice the M1082-A2’s have got rear sway bar setups - the only 4WD Squares to get those from GM.
Notice the M1082-A2’s have got rear sway bar setups - the only 4WD Squares to get those from GM.
I always thought the Camper Specials were supposed to have the rear bar? And I always just assumed the previous owner had removed mine.
I had a 80 k30 12k gvw trailer towing special all stock no mods . No sign of rear sway bar . . . Now 2wd yep seen a few with sway bar . Have a frame cut off now in my pile from a p3500hd 10 lug rear dana 70hd and sway bar all included .
For years I’ve been look’n to see if I could ever run across a K/V series DRW square with the rear sway bar and related hardware and never did ; but that doesn’t mean much so a few years ago I decided to research it instead of constantly looking for one with that setup.
I started with the RPO codes listed year by year from the GM Heritage Archives and studied the descriptions and read the footnotes for all things related to springs, chassis, trailering packages and camper special options - I also studied the GM Service & Illustration Manuals for any wording associated with each related codes and drawings and footnotes.
It turns out that the DRW 4WD’s were excluded on the rear sway bar package with the exception of certain specific Uncle Sam DRW M1028-A2 versions from ‘84~’87 - not all M1028’s but certain versions have this.
These versions also have heavier ( or multiple ) auxiliary springs and different related hardware as well compared to the civilian offerings - pretty cool stuff.
Kinda like the regular K-30 CUCV’s using a NP-208’s even though the civilian stuff wasn’t available with it - apparently Uncle Sam had enough purchasing power to get certain versions equipped the way they saw fit regardless of standard options on each series.
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My old ‘83 K-3500 DRW Crew Cab had the Camper Special Package too and that’s what got me started on looking at any DRW 4WD to see why they didn’t come with the sway bar setups - in the real world they would be in the way while off-road since they are a below the axle mounted setup.
From what I could tell from the heritage site RPO listings the C/R DRW RPO code “RO5” triggers the rear sway bar with or without the Camper Special Package.
From what I could tell from the heritage site RPO listings the C/R DRW RPO code “RO5” triggers the rear sway bar with or without the Camper Special Package.
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A lot of the M1028A2’s were conversions from regular M1028’s. There was literally a palletized kit for the conversion with all the parts on it. I wonder if those had the sway bar or didn’t?
That makes a lotta sense - I was looking at an exploded view parts diagram and the overload spring had its own set of downward u-bolts ( not like any Mickey Mouse aftermarket stuff - but rather much better and stouter appearing ) along with its own brackets and hardware too. I thought it was odd that the overloads weren’t wrapped up in the main u-bolts.
In the diagram there was even a wedge/block for under the main leaf pack - kinda reminded me of late model F-450/550’s that can be ordered with what they call a “load-leveling package” for vehicles that are at maximum load capacity constantly.
Maybe the extra capacity auxiliary springs and complete sway bar components came as a kit just like you said for flexibility being able to upgrade any M1028 as needed. Makes sense and especially with the odd hardware being used on them.
Great information !
If anyone has some good pics of this setup please post them up - a real picture is far better than just a drawing.
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