Is the 2500 HD rear axle and the 3500HD srw axle the same? I know that the suspension capacity ( 6200 #'s vs 7050#'s) is different due to the number of springs--But I'm wondering if there is any real difference between the axle design and construction between the two--I would guess not. It is my understanding that the drive trans are identical. Is that correct?
The 3/4 and srw 1 tons have the same axle, and same springs. The 1 ton has an "add-a-leaf" on top of the normal spring pack. It has it's own contact ears riveted to the frame.
Thanks. That's what I thought. I've added air bags to my 3/4 ton --I'll see how they work--may add a helwig helper spring system at some point if the air bag system does not work out.
I know that in the 2012 HDs, the 2500 gasser came with 10.5 and the 3500 gasser came with 11.5. I compared them before I bought my 3500 gasser.
Dmax were 11.5 in both 2500 & 3500.
Starting in 2020 m.y. they changed it up. The 2500s come with a smaller differential than the 3500s. 1" difference. 10.5" vs. 11.5" I think? As far as I know, same axles and such, just a bigger ring gear in the 3500s.
Before that, to my knowledge, 2500 and 3500 were all the same size everything but rear springs.
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