Home of all dually trucks with the GMC/Chevy 3500HD series truck a point of interest.

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You can appreciate the “beef” of the GMC/Chevy 3500HD trucks, a stripped rolling 3500HD chassis weighs more than a running C1500!

When posting on this site you won't have to explain what the 3500HD Beast is! ie 19.5 wheels, straight axle, 10 bolt wheels, 15000lbs GVW, 4 Wheel Disc Brakes etc

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Welcome to the forum created October 2009

Recent Posts

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3500 & 3500HD Complete Trucks FOR SALE / 2000 C3500HD Utility body For parts
« Last post by Dustman28 on January 20, 2019, 04:13:59 PM »
2000 Chevrolet C3500HD Utility body Service body Truck. 6.5 Diesel. For parts. Orlando Florida. Something went in the motor. It knocks and smokes real bad. When it warms up the oil pressure drops at idle but comes up when you push the diesel pedal down. Many new parts. Would make someone a good parts truck. Gotta take it whole. Ladder Rack, 6 New tires, 8 new injectors, new PMD with a spare, 2 new batteries and vacuum pump. It will drive around the block or up on a trailer but that's as far as I would take it. $1500. All parts went in at the beginning of summer, was my daily driver. Feel free to shoot a email If interested.
Engine-Driveline-Wheels-Tires / Re: Carrier bearing question 2000 C3500HD
« Last post by Dustman28 on January 20, 2019, 04:10:02 PM »
Thanks. I took it to Chevrolet as no one knew much about the truck. No bearing press is required to do the job. Once the bearing was replaced it turned out the vibration was from bad U joints
Intros - 3500 HD History / Re: HISTORY OF GM 3500HD BY YEAR?
« Last post by jd8420 on January 20, 2019, 01:28:53 AM »
That is a Rockwell C103. There was a Detroit Locker made for it but it hasn't been available in several years.
Intros - 3500 HD History / Re: HISTORY OF GM 3500HD BY YEAR?
« Last post by boat2fast on January 19, 2019, 10:55:10 PM »
I have a 1992 base model 3500HD with the following VIN 1GDKC34K7NJ503034
The truck was a municipal trade-in at a local dealer. It had almost 7,000 miles. Now it has over 13,000.
Truck specs:
350 5.7L, 5spd NV4500, Rockwell Rear. No air, no radio, manual windows and locks.
Has power steering and hydroboost brakes. Truck is equipped with a 12ft Rugby dumping rack body.
Recently I converted the truck to super single rear wheels and 285-70R19.5 Michelin rears and new Michelin 225-70R19.5 fronts.
In my state anyone with dual rear wheels and a twin axle trailer is ticket bait. Single rear wheels takes the truck off the DOT radar.
I recommend the conversion. Total rear tire capacity dropped from 15,000lbs to 13,220lbs which I could live with.
Now the truck feels like a big pick-up. It's smooth, quiet, and fun to drive.
I would like to find information on the Rockwell rear axle. It would be a worthy upgrade to install a locker.
3500 & 3500HD Parts WANTED / 411 PCM tray
« Last post by SSOR on January 04, 2019, 01:43:11 PM »
I need the PCM mounting tray from an 8.1 truck for use with the 411 computer.
Off Topic Items-Politics-Jokes etc / Opensource LS PCM Flashing
« Last post by ED-NY on December 14, 2018, 07:58:33 AM »
Looks like the guys over at the GearHead EFI Forum have developed/written a working program to flash the LS (411) pcm. The LS engine conversions are taking over the street performance market, altering the pcm code to eliminate for example anti-theft, evap, change VIN etc requires expensive hardware and "credits...(appears this is about to change).  FYI They have been able to change the VIN previously.

Here is a video of a LS Droid flash:

Here is the full GearHead link related to this project:

Hopefully this latest development will lead to a user friendly & less expensive flashing process in the very near future.

Suspension-Brakes-Hydraulics / Re: "THE" kingpin thread...
« Last post by ED-NY on December 13, 2018, 07:27:28 AM »
Stumbled onto this and wanted to post here, in case it helps someone

THANK YOU!  Put the link below!
Suspension-Brakes-Hydraulics / Re: "THE" kingpin thread...
« Last post by restoguy on December 12, 2018, 11:20:39 PM »
Stumbled onto this and wanted to post here, in case it helps someone
3500 & 3500HD Complete Trucks FOR SALE / Re: 3500HD 4x4’s for sale in CO
« Last post by ED-NY on December 12, 2018, 12:36:48 PM »
10-4  should have said it has a Titulo limpio.

On this border it's titre propre

Somebody got a lot of truck already done!
3500 & 3500HD Complete Trucks FOR SALE / Re: 3500HD 4x4’s for sale in CO
« Last post by someotherguy on December 12, 2018, 11:38:44 AM »
And it's Titulo limpio!
That's a good thing!  Clean title.. though depending on how you translate it, could also mean "cleansed" title which makes it sound like some salvage went through Alabama and came back with a regular title. ;)

If I was looking for a 4x4 HD I'd be all over that truck.  Last year of old interior, crew cab, gas engine... yeah!

EDIT - and apparently someone else was all over it; the ad is gone!

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3500HD King Pin Replacement
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