taken wrote:
I'm not sure about Ram and GM, but with Ford the SRW 350 is identical to the 250. The only possible difference is a single upper overload spring and a taller rear spacer block under the suspension. Both of these items can be had on a 250 as well based on packages ordered. They can also both be added after the fact for cheap money. With Ford, the 250 is de-rated on paper to fill a different market segment is physically the same truck. That said, the two will ride identically...
GM is similar between the 2500 and 3500 SRW. slightly higher spring rates in the back, not much else. In fact prices are almost identical between the two, there are some occupant feature differences around safety etc. but not much. I would expect them to ride similarly.
Interestingly at least on the GMC Denali you would need to look at the VIN or door sticker to know if it was a 3/4 or 1 ton. Badges on both just Say Denali HD, no 2500 or 3500 Designation.
around here, 3500 standard (short) box crew cab SRW trucks are virtually impossible to find on the dealer lot. long box, a few, but the vast majority on the new car lots are duallys. I would have needed to factory order the 1 ton, and given it gave up a few safety features avaiable on the 3/4 ton and the 3/4 ton had more than enough payload for our trailer went with the 3/4 ton.
But be aware that a crew cab diesel 4x4 from any of the three is going to have a payload of 2200-2600lbs at most. They all weigh 7500+ lbs empty with a 10,000GVW. One ton SRW adds another 1500lbs to payload roughly since empty weight is usually very close to the same 3/4 ton configuration.
As far as ride between mfg, best thing to do is go for a test ride and see what you think. they all ride pretty good. What I like in ride may be something you hate.
Our son has had a ford and dodge 3/4 ton work truck, and driven both our GM's and prefers the GM ride. He now has my 04.5 duramax. But again best thing to do is drive each one and decide.