Can anyone tell me if there are any significant differences in a 3/4 ton and a 1-ton other than the amount that you can haul in the bed? Is there any differences in the engine, tranny, differentials, etc...
Thanks in advance.

There aren't any differences in the drivetrain between the 2500HD and 3500 SRW. It used to be that a 2500 can haul a few hundred more pounds than the 3500 SRW, but it appears that they are now using a 6500lb rear axle and the 3500 out-hauls, but only by about 300lbs.

I am almost sure that everything is the same on a dually as well, except for maybe the rear diff. If you are not going to tow a 5th-wheel, I would get a 2500 .

On a side note, the 3500 SRW MSRP is a few hundred $$$ less than the 2500HD when outfitted with the same options on GMC's website.

The Gm sight has the trailering numbers, I ordered a 3500 crew 4x4 w/3.73 since I tow a 12000 + 5th wheel. The 2500 capacity is 13,600lbs and the 3500 is 14,600lbs.
The ball hitch rating were 13,000 for all cab styles 2500 or 3500.

Thanks for the replies.

It still doesn't make sense to me why the 3500 SRW would cost less than the 2500. Maybe it's just supply and demand, knowing that there are more folks that buy the 2500.

difference is 1 leaf spring and 700lb gvrw differencee thats it.

I think the difference is in the number of options available. That might be where they save the money and why they might be a little cheaper.

Furinstance, I can't find an option anywhere to select a 6.6' bed with a 3500 Ext Cab. But you can select one with a 2500 Ext Cab. Also, the options available within a trim level seem to be reduced in a 3500 vs a 2500.

Limit options and you limit variations which increase cost. Just my observations.:confuzeld

There aren't any differences in the drivetrain between the 2500HD and 3500 SRW. It used to be that a 2500 can haul a few hundred more pounds than the 3500 SRW, but it appears that they are now using a 6500lb rear axle and the 3500 out-hauls, but only by about 300lbs.

I am almost sure that everything is the same on a dually as well, except for maybe the rear diff. If you are not going to tow a 5th-wheel, I would get a 2500 .

On a side note, the 3500 SRW MSRP is a few hundred $$$ less than the 2500HD when outfitted with the same options on GMC's website.

I have a 48' Featherlite Gooseneck that I've towed with my first HD,a 2500hd Ext. Cab Diesel S.B. and now my current 06 2500HD Deisel CC S.B. They two fine. Unless you have a need to drive around in a Land Yacht, I would reccomend a 2500HD.

The 3500 srw comes with 265 tires and steel wheels versus 245. The ride is a bit stiffer and bouncy when unloaded. No regrets on my 3500 long bed, except parking in regular sized parking lots.

I have a 48' Featherlite Gooseneck that I've towed with my first HD,a 2500hd Ext. Cab Diesel S.B. and now my current 06 2500HD Deisel CC S.B. They two fine. Unless you have a need to drive around in a Land Yacht, I would reccomend a 2500HD.

As long as the weight is distributed correctly thats perfectly okay on a 2500. For the heavy goosenecks (3+ car trailers, bulldozer, frontloader, etc...), you need the extra 1600# of payload on the 3500 dually to accommodate for the extra pin weight.

Mine has aluminum wheels with 265 17s '08 SRW 3500