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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!

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Welcome to the 3500HD.com forum created October 2009

Recent Posts

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Starts, runs, drives, stops, a little biffed but not rusty.  Check it out here: https://chicago.craigslist.org/chc/cto/d/chicago-2001-chevrolet-c3500-hd/7062998339.html
2
3500 & 3500HD Parts WANTED / Wide-track Dana 80 Wanted
« Last post by bridgepainter on January 21, 2020, 05:34:00 PM »
Hey all,

Finally got ahold of a crew cab, saving me from having to butcher the frame myself.  My eventual goal is to put a dually long bed on it.  As it sits, though, with the narrow-track chassis cab axle, the wheels are going to sit significantly inside the dually flares (goofy) and might necessitate tubbing the bed (suboptimal).  I'd like to avoid having to do this.  I have heard that some of these things came with a wide-track rear axle, which I assume would be much closer to the standard width 14 bolt dually axle that came under the 3500s.

Does anyone out there have one of these that they'd be willing to part with?  I'm very interested in acquiring one if there's one out there to be had.  I'm located in Chicago, but am willing to travel a considerable distance to get ahold of one of these things.

Thanks for reading.
3
3500 & 3500HD Parts FOR SALE / Mag Hytec differential cover for Dana 80
« Last post by someotherguy on January 21, 2020, 11:59:06 AM »
From another forum, not my ad nor do I know the seller, but decent price for an expensive cover ($200 shipped)

https://www.gmt400.com/threads/mag-hytec-dana-80-cover.47890/

These are typically closer to $250 depending on source.

Richard
4
3500 & 3500HD Parts FOR SALE / Re: 95 3500HD Ftont Sheet metal
« Last post by Daytb on January 16, 2020, 08:10:10 AM »
Sw Ks Dodge City area
5
Engine-Driveline-Wheels-Tires / Re: Engine Swap/Regear/adapters Questions
« Last post by Tr00b on January 15, 2020, 02:54:06 PM »
Part of me believes the dodge Dana 80 ring and pinion won

Yeah, I'm also thinking it won't fit, they have a different carrier for these lower geared ones in the 3500hd's with a bigger ring gear.
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Engine-Driveline-Wheels-Tires / Re: Engine Swap/Regear/adapters Questions
« Last post by RPF207 on January 15, 2020, 01:01:25 PM »
Part of me believes the dodge Dana 80 ring and pinion won
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Engine-Driveline-Wheels-Tires / Re: Engine Swap/Regear/adapters Questions
« Last post by Tr00b on January 14, 2020, 02:27:59 PM »
Many of the Dodge diesel Dana 80's that came with a manual transmission have a 3.55 gearset. I imagine you could swap carrier/r&p with one of those and be good to go, but it would depend what kind of look you want. 22.5's rims and tires would look pretty cool, tires would last forever. But $$$$. You could swap the rear with the dodge truck rear, but then you have 8 bolt in the back to deal with. Could run a gear vendors overdrive, too, so you have the extra grunt for accelerating but the benefit of the overdrive for cruising. Part of the rated weight capacity of these trucks IS the low gearing in the rear.

 
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Engine-Driveline-Wheels-Tires / Re: Engine Swap/Regear/adapters Questions
« Last post by Flatbedcowboy on January 13, 2020, 05:10:06 PM »
https://www.ebay.com/itm/263692032445

I found these just now by accident. They say they are 10x7.25" to 10x285 adapters for 5.25 hub bore. Thats what our rims are right?

That would allow me to run 22.5 rims and tires and not have to regear. Plus the benefit of larger rims! But.... $3000 for 2 front and 2 rears.

Thoughts?
9
Engine-Driveline-Wheels-Tires / Engine Swap/Regear/adapters Questions
« Last post by Flatbedcowboy on January 13, 2020, 01:25:06 PM »
Alright so I have a '96 auto with the 7.4 Vortec. I bought this truck with the intentions of doing a cab swap with a '48 International I have. And because I wanted the 10' bed. I wish I would have just waited and found a dodge cab and chassis, but I got this one for scrap price. I do like the frame size though.

The parameters:
Im either doing a Cummins 12v swap or an International DT466. (I have one of each of these in my barn)

The 12v likes to cruise 70mph at 1800 rpm. The DT466 likes 2000-2100 rpm at 70mph.

Im either going to us a FSO-8406A with the DT466 or a NV4500 with the Cummins.

I believe I have the 4.63 rear gears.

I plan on using the truck to tow 24K pretty constant. I would like to do 75mph empty; Hwy speeds here are 80mph.

The problems:
So if I use the stock 225/70r19.5 I would have to regear the Dana 80 to 3.55 gear set no matter the transmission, to cruise at 70 mph.
Cost to Regear: $1200+
OR
I can get larger rims and tires going to a 11R22.5. But there seems to be no solution in the ways of adapters or spacers still?
Custom adapters: $2000+?

I would prefer the 22.5 rim route as they would fill the fenders on my conversion cab way better and look pretty dang good. I have 2 sets of 24.5 rims but that may be a bit to big.


Mainly just looking for more thoughts and insight on this? 
10
3500 & 3500HD Parts FOR SALE / Re: 95 3500HD Ftont Sheet metal
« Last post by Tr00b on January 10, 2020, 01:56:14 PM »
Where are you located?
Pages: [1] 2 3 ... 10

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DIESEL HUB
DIESEL PLACE
EAST COAST GEAR SUPPLY
3500HD King Pin Replacement
4BT and Diesel Swaps
King Pin Tech Tip pdf
JEEP ENGINE GUIDE pdf MOPAR
KING PIN THREAD
JEEP WRANGLER WIRING DIAGRAMS
MILLER TIG Welding Calculator
TBI CHIPS.COM
VINTAGE CHEVY/GM FORUM
HYDRO-BOOST LEAKING? Fix it for $6.50