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Welcome to the 3500HD.com forum created October 2009

Author Topic: 3500HD 4x4 axles questions . . .  (Read 16307 times)

BigBlockV6GMC

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3500HD 4x4 axles questions . . .
« on: January 12, 2010, 04:20:16 PM »
What axles went under the handful of 3500HD 4x4's ?

What gear ratios did they use ?

What would a matched set of them run ?

Mike



1953 Studebaker M275.
1962 GMC K3000.
1969 AMC AMX-390.
1977 Ford F350.
1982 AMC/Jeep J-5500.
1982 AMC Eagle SX/290.
1988 AMC/Jeep MJ-343.
1992 GTA Trans AM.
2007 Honda Rubicon TRX500.

someotherguy

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Re: 3500HD 4x4 axles questions . . .
« Reply #1 on: January 12, 2010, 05:29:19 PM »
Since none came from the factory as 4x4, the 4x4 versions were all aftermarket conversion.  Quigley and I'm trying to remember the other name.

Seems like most I've seen were 8 lug in front, as it was pretty obvious when you see the 19.5" wheel up front but it has 4 hand holes instead of 5, then you notice 8 lugs in a small pattern, the 8x6.5" like a regular 3500 (non-HD) dually.  I think I've also seen them with 16's in the front.

No idea how they managed to find gearsets that matched close enough to the somewhat oddball ratios in the Dana 80's.   I'm betting Brad (Kargomaster) or possibly Nick (MrBeast) have looked into it enough they may have some specifics.

Richard
06 Silverado ISS / 06 Silverado SS / 06 300C SRT8

BigBlockV6GMC

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Re: 3500HD 4x4 axles questions . . .
« Reply #2 on: January 12, 2010, 05:44:07 PM »
On my Jeep "J-5500" were i am turning a RAM350 into a jeep i'd like to run a 4.30 gear withe 245/70R19.5's being spun by the Cummins n 5spd . . . Basically an 89'-93' RAM350 with a 1962-1988 Jeep J-truck cab on it and a flat bed . . .

I think 4.11's are a bit to high and i think 4.56's are a bit to low so my options are twin Dana 80's or deal with 4.11's or 4.56 gear's. . .

Project J-5500, i ran into a bit of snag with gearing option's. . .

89'-91.5 RAM350 has D61 n D70 axles only gear options:
3.07's
or
4.11's.

91.5'-93' RAM350's has D60/D70:
4.11's
or
4.56's

I really wanted to go with a 4.30 gear ratio.

which leaves me 2 option's D60 8lug front /D80 10 lug rear.

or

D80/D80.

Can a D80 rear be turned into a D80 steer ?

or

dose a D80 steer exist some place ?

Mike
« Last Edit: January 12, 2010, 06:34:48 PM by BigBlockV6GMC »
1953 Studebaker M275.
1962 GMC K3000.
1969 AMC AMX-390.
1977 Ford F350.
1982 AMC/Jeep J-5500.
1982 AMC Eagle SX/290.
1988 AMC/Jeep MJ-343.
1992 GTA Trans AM.
2007 Honda Rubicon TRX500.

BigBlockV6GMC

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  • Posts: 115
  • Age: 37
  • Location: Madison,WI
  • AMC & GMC powered !
Re: 3500HD 4x4 axles questions . . .
« Reply #3 on: January 13, 2010, 07:02:33 PM »
I got everything all figured out all is good with some tire size adjusting i was able to get the desired RPM/MPH ratio i was looking for thank's for the speedy help  :'( . . .

Mike
1953 Studebaker M275.
1962 GMC K3000.
1969 AMC AMX-390.
1977 Ford F350.
1982 AMC/Jeep J-5500.
1982 AMC Eagle SX/290.
1988 AMC/Jeep MJ-343.
1992 GTA Trans AM.
2007 Honda Rubicon TRX500.

KargoMaster

  • Single Axle Driver
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  • Age: 42
  • Location: Cincinnati, Ohio
Re: 3500HD 4x4 axles questions . . .
« Reply #4 on: January 14, 2010, 01:55:11 PM »
Quigley, Monroe, Tulsa (maybe?)

Dana 70 open knuckle with a special 10x7.25 hub...  5.13 gears in both front and rear...  like this one:







Here's the hub by itself:





I've also seen/heard of 8 lug 60's and 70's...

Personally, I'm not a big fan of the Dodge CAD Dana60's from the 90's...  (I think my wife's Pilot has larger brake pads :o)
I'd run a Kingpin Dana60 any day... (LP Chevy variety in the Jeep, and HP Ford variety waiting on my sorry butt to get to work on the 3500HD)


Oh, and here's a Pro 80 rear steer application (SWEET!):


brad

Tow Vehicle: 1995 C3500HD CrewCab TBI-454 | 4L80e | 37spl Dana80 | 8' Flatbed | (SAS candidate)
Toy Vehicle: 1979 CJ-7 5.0L | NP435 | NP203 | Dana300 | Dana60/14BFF

KargoMaster

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  • Location: Cincinnati, Ohio
Re: 3500HD 4x4 axles questions . . .
« Reply #5 on: January 14, 2010, 02:05:04 PM »
PS -  A while ago I re-geared the 80 to 4.10 (not offered from the factory, but Spicer gears are Spicer gears ;)) specifically to make my Dana60 hunt easier...  and to lower my RPMs on the highway... 8)

WHY??? couldn't Dana make backlash easy like the 14 bolts, 9 inch or some toyota stuff???  WHY???
« Last Edit: January 14, 2010, 02:07:33 PM by KargoMaster »
brad

Tow Vehicle: 1995 C3500HD CrewCab TBI-454 | 4L80e | 37spl Dana80 | 8' Flatbed | (SAS candidate)
Toy Vehicle: 1979 CJ-7 5.0L | NP435 | NP203 | Dana300 | Dana60/14BFF

j20m715

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  • Posts: 41
  • Location: TEXAS
Re: 3500HD 4x4 axles questions . . .
« Reply #6 on: January 15, 2010, 05:56:50 PM »
What axles went under the handful of 3500HD 4x4's ?

What gear ratios did they use ?

What would a matched set of them run ?

Mike

Hey Mike

I have a 94 4x4 3500hd I bought for the axles.
It has a Dana 70 under the frt. I have heard some had dana 60's.
My truck was a tbi454 & has 5:13's in it.

Price wise I cant say, I over paid for mine (trucks from up north & was told it had a LITTLE rust).
I bought it sight unseen & lets just say theres not much left of the frame or body for that matter.
I looked for quite awhile for a 4x4 one, & just couldnt find one for sale.
They are rare & hard to find.

Monroe did the conversion on mine, and after seeing what they did to this truck,
I wouldnt let them touch one of my trucks EVER.
The frt axle install is the biggest HACK job I have ever seen.

Hope this helps.

Project: 3500HD, 4x4, Crewcab, Cummins

j20m715

  • Single Axle Driver
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  • Posts: 41
  • Location: TEXAS
Re: 3500HD 4x4 axles questions . . .
« Reply #7 on: January 15, 2010, 06:08:30 PM »

If I had it to do over again.
I think I would find a dana 70 center section & have an axle built.
Project: 3500HD, 4x4, Crewcab, Cummins

BigBlockV6GMC

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  • Age: 37
  • Location: Madison,WI
  • AMC & GMC powered !
Re: 3500HD 4x4 axles questions . . .
« Reply #8 on: January 15, 2010, 08:52:59 PM »
project Jeep J-5500:


Mike
1953 Studebaker M275.
1962 GMC K3000.
1969 AMC AMX-390.
1977 Ford F350.
1982 AMC/Jeep J-5500.
1982 AMC Eagle SX/290.
1988 AMC/Jeep MJ-343.
1992 GTA Trans AM.
2007 Honda Rubicon TRX500.

Grunkybouy

  • Single Axle Driver
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  • Posts: 1
  • Age: 63
  • Location: Carriere, MS
Re: 3500HD 4x4 axles questions . . .
« Reply #9 on: July 25, 2013, 02:06:49 PM »
Kargo master, where did you find these hubs and what do they fit? (10x7.25 hub) I am at a loss as to what is the best way to put a 4x4 set up under my HD. D60,D70,D80's ? I thought that what I saw was a pretty straight forward conversion. The dodge axle is supposed to bolt right up. Does that mean the GM axle will do the same thing? I am lost.

 


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