Rear Axle Ratings? [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: Rear Axle Ratings?


cdhd2001
02-09-2005, 11:29 AM
Does anyone know the rear axle ratings for:

2500hd
3500 single wheel
3500 dual wheel

Just curious. ;)

aketay
02-09-2005, 12:11 PM
I think it has been mentioned before that the axle itself is rated above 8000lbs. Add the load capacity of the tires up to get numbers you desire. The tires seem to be the limiting factor. The PYO (aluminum wheels) are rated at 3042lbs.

_MJB_
02-09-2005, 12:18 PM
The PYO (aluminum wheels) are rated at 3042lbs.
Are you sure about that? The RAWR for the 2500hd is 6084 lbs but I think that the limiting factor is the 3042 lb rating for the 245/75/16 LRE tires. The PYOs would have to be rated at least that high but I have not seen any definitive information on what the wheels are actually rated for. Anyone know for sure?:confused:

bluenote
02-09-2005, 04:53 PM
They all have an AAM 1150 rear axle, which is rated by AAM for a maximum of a little of 10,900 pounds.

Frank_EP
02-09-2005, 07:15 PM
As noted above, all have the AAM 1150 rated at 4950Kg -- over 5 tons. The ratings you read are due to springing and tires.

If you have a SRW, but switch to 19.5 tires with a G load rating and add air bags, you should be able to run right up to the full rating.