Like everyone said if you get a SRW 350 it has slightly more capacity and slightly higher then a 250. Other then that just the badging is different, like Jeff stated you definatly want to go with a Lariat and they are a fairly common truck. I never rely on the lie o meter I just use it as a compass and a thermoter. Good luck finding a 350 SRW they are definatly a rarer breed.

 

I've owned both a F-350 dually and the present F-250. The 350 was a CC with all the bells and whistles, but I far prefer the 250 extended cab, do not care for the looks of the dually nor the having to spring for an extra pair of tires at tire time.

 

The only difference is the extra rear leaf spring. The higher towing capacity is because the rear springs will now support more tongue weight. MPG will be no different. I don't know about particular state laws, but here in the Greatest State of Texas, the tags will be a tad higher due to the extra 500 pounds gross weight capacity.
The interesting thing is that a dually actually is rated to tow LESS than a SRW due entirely to the added weight of the rear axel and extra set of tires. Ain't that a hoot.

 

[quote=joegebff;601753. I don't know about particular state laws, but here in the Greatest State of Texas, the tags will be a tad higher due to the extra 500 pounds gross weight capacity.[/quote]

do they make you get weighted tags rated at the GVWR. i have mine registerd for 20K pounds. but when my dad bought his '05 King Ranch F350SRW, they issued him tags for 7500 lbs. i told him to take that crap back to the dealer who charged him for the tags and ask how did they figure 7500 lbs would work on a truck with a GVWR of 11400 and GCWR of 20000?

 

Plus (my opinion) they look clumsy. I had a Dodge 1 ton dually once upon a time, the biggest POS I've ever owned in my long life. I had no intention of keeping it long enough to replace the tires. I bought it new, and everytime I wrote that check to Chrysler Credit each month I was tempted to shoot myself. But with a dually if the rear tires are wearing out it is like trying to drive on ice when it is raining. Really scary.

 

the axles are slightly different in the front on a F250 then a F350....I think it's Dana 50, instead of 60. Rears are both the same. With the exception of the larger block on the F350. It's a tossup really......I'm on my 3rd F250

 

i've got some feelers out there, nothing firm, thank you all for the information

 

Here is the link for Super Duty Facts. I keep this in my Favs for quik reference!

Super Duty FAQ's

 

get the 350, it feels good when someone asks you what u drive and you say, (SUPERDUTY ONE TON DIESEL BABY)!!!!

 

Yeah Kevin. In Texas the fee is based on GVWR. And if by chance you are pulling a big trailer and get weighed you had best not be either under registered no overweight. And for that matter you need a CDL over 16,000 lbs combined weight. Very easy to hit that pulling a tractor........

 

The only difference that i know of is the springs and the block but the latter doesn't matter much .
Here is what you need 2 kno.
There is a two-character spring code on the vehicle certification sticker on the lower doorpost behind the driver's door. The first character is the front spring code, and the second character is the rear spring code. A common spring code for a CrewCab 4x4 would be VB. The V means 5,200 pounds front springs, and the B usually means the rear springs on an F-350 SRW. However, some F-250s also have code B rear springs.

Any pickup can have any available front spring code - depending on options, and it doesn't matter whether F-250, F-350 SRW or F-350 DRW. Here are the spring codes for the front leaf springs on '99 thru '04 PSD 4x4 pickups:

T = 4,400 pounds @ground
U = 4,800
V = 5,200
W = 5,600 (rare on a pickup)
X = 6,000 (only with snow-plow pkg on a pickup)

Rear spring codes:
A = F-250 & Excursion (6,084 pounds @ground)
B = F-350 SRW (6,830 pounds @ground)
C = F-350 DRW (8,250 pounds @ground)
If you already have code B rear springs, then you already have the same rear springs that are on F-350 SRWs.