Axle Weight Ratings?

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I hope this isn't considered a drivetrain type question... but since it applies to both 12v and 24v trucks, this seemed like a good place.

What are the weight ratings of the axles in our trucks? Mine is the Dana 80 hybrid (based on the sticker under the hood), despite it being an automatic.

I weighed my setup on Friday -- truck, Lance camper, and car on car trailer. Total weight was 17,320 lbs. Weight on the axles was 38xx front, 81xx rear, and 53xx on the trailer. I want to be sure I'm not overdoing it.

Rob
- 96 RAM 3500 CC 4x2

 

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Rob - I think the door sticker has the Gross Axle Rating listed and if the memory is working my 2500 4x4 has a 4600# front and 6900# rear. The 3500 should be about the same on the front but I would hope it was higher on the rear. Not sure about the diff between 4x2 and 4x4.

 

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Rob I believe the axle on a dually is a 7500# axle. regards Pete

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99'3500,quad cab,4X4,a/t
3:54,all the right packages!PROPER VALVEMENT

 

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Checked the piller last night: Front=4850# Rear=6084# (This is a 2500 QC 4x4)

 

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You're right about the door jamb sticker... says 7500 lbs. with the 215/85-16 "D" tires @ 60 psi. Now... does that mean the axle can take more with better tires? Mine are "F" rated (the 19. 5's). Also, I checked one of my old tires and in dual form at 66 psi max, it says they'll do 2150 lbs. each (8600 total). Very interesting.

Otherwise... what's another axle I can get with a higher rating? Ugh.

Rob

 

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Well I just had to go out with the flashlight and look at my 215/85R16's on my truck,Single-- 2470 @80 lbs X 4 = 9880 lbs .
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Looks like a little under rating's goin' on around here.

I think we all know there is considerable A$$ covering built in on weight ratings to protect corporate America from the likes of most of us that hang around here. #ad


It would be cool to know what the engineered capacity of the big D-80 really is!

Any one know??


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99,QC,3500,Sport Black,4x4,Auto,3. 54,Anti-spin,Camper pkg,Carpet delete,all options except leather.
Silencer ring?? We don't need no stinking silencer ring!!!
Self installed goodies,
OEM Running boards,Mud flaps&Bed liner, Tinted windows,Jacobs E-Brake,BD Torque Loc. Whimpy stock class 4?? hitch fell off-replaced it with a Super Hitch(1200# tongue,15000# trailer) on the house from DC thanks for the recall!!

Installing-Trailer brake controller.

Next-BD Pressure loc and one of those really cool mag hytec transmission pans.

 

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Mike:

Remember, I have a 3500. So my x4 was for the rear only. Add all six D ratings up for a 3500 and you get 13540#.

I do wonder what the actual D80/70 hybrid weight capacity is. I suppose I'll find out. #ad


I kinda figure the factory underrates everything by 10-20% to account for people like us. That being the case, I'm still under given a 10% margin.

Rob

 

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Does anyone know the legalities for exceeding the GVR as shown on the sticker of the door sill? I've heard that this is checked in Canada.

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David Dressler
2001 Driftwood 3500 Quad Cab 4x4, 155 inch WB, 5. 9L HO Cummins Diesel (ETH), 6-Speed HD Manual (DEE), SLT+, 3. 55 Anti-Spin Axle, Camper Special Group, Trailer Tow Group, Leather, Sliding Rear Window, Jacob's E-Brake, Rhino Liner, VDO Vision (pyro, boost, engine oil temp. ), Weather Guard Diamond Plate Saddle Box, AND functional Halo light!
"Diesel, it's not just for breakfast!"

 

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The hybrid Dana 80 carries a rating of 7500lbs. The true Dana 80 carries a rating of 8250lbs... CJ

[This message has been edited by COBRAJET (edited 07-26-2000). ]

 

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RobG,
I also have the 3500,check my signature,I thought we were just talking rear axle ratings here. The stork brought my truck with Michelin load range "E" 215/85R16's so if I add 'em all up,Front 2680lbs @ 80 psi X 2 and 2470lbs @ 80 psi X 4 for the rear =15,240lbs maximum available tire load capacity. #ad
: Overkill??? maybe, but I think DC is just covering their corporate butt.
It would be cool if someone here knew someone who had carnal knowlage of the real engineering poop on the magnificent Dana 80.

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99,QC,3500,Sport Black,4x4,Auto,3. 54,Anti-spin,Camper pkg,Carpet delete,all options except leather.
Silencer ring?? We don't need no stinking silencer ring!!!
Self installed goodies,
OEM Running boards,Mud flaps&Bed liner, Tinted windows,Jacobs E-Brake,BD Torque Loc. Whimpy stock class 4?? hitch fell off-replaced it with a Super Hitch(1200# tongue,15000# trailer) on the house from DC thanks for the recall!!

Installing-Trailer brake controller.

Next-BD Pressure loc and one of those really cool mag hytec transmission pans.