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The gas F350 which comes with the same Sterling 10.5" as the F250 is rated on the sticker as rear GAWR of 7230 not 6340. Ford just changes the listed rating. Here's two fairly identical trucks. Same tires, axles, etc.
I will also add that both SRW trucks have the same braking system.
I fart in the general direction of SRW trucks. Here's the sticker on my truck. I'm interested in what Dana/Sterling rates the axle at - not what Ford derates it to which is available on the sticker below.
The gas F350 which comes with the same Sterling 10.5" as the F250 is rated on the sticker as rear GAWR of 7230 not 6340. Ford just changes the listed rating. Here's two fairly identical trucks. Same tires, axles, etc.
I will also add that both SRW trucks have the same braking system.
Also, the front Dana 60 has a GAWR of 6,500 or 7,000lbs. Numbers are conflicting between the D60 and Super 60...but either way...not the 4800# like those stickers say
Only item I would disagree with here is the issue of brakes. I'm not sure why the brakes would be any more overworked than on a 11500GVWR SWR F350, as they have the same braking system.
Im fairly certain a F350 has hydro boost assisted braking system and F250 does not. A dually f350 does have hydro boost not 100% sure about the SRW350.
Im fairly certain a F350 has hydro boost assisted braking system and F250 does not. A dually f350 does have hydro boost not 100% sure about the SRW350.
Per the Ford Spec book, the SRW F350 has same brake system as F250. You are correct that the dually has Hydro-Boost.
but.. one has a 10,000 rating and one has a 11,300 rating....
Correct. As one is a F250 and the other is F350. Point was the physical axle and brakes are the same. Its a numbers rating game Ford has to play with vehicle class.
The only real major differences between a GAS F250 and F350 are the tranny (6R100 vs 6R140) and rear springs (3 leaves vs 4 leaves with overload).
Hmmmm. So what's the manufacturer rating (not the Ford rating) on my 2017 F350 DRW? I gotta go look up which axle it is again. Last time I tried to find that data, no one had it published yet.
That is a difficult find but it looks like your Dana M300 rear axle has max GAWR of 16k lbs.
It is designed for use in light commercial vehicles with Gross Axle Weight Ratings (GAWR) of 5200 to 7250 kg (11,500 to 16,000 lb)
Im fairly certain a F350 has hydro boost assisted braking system and F250 does not. A dually f350 does have hydro boost not 100% sure about the SRW350.
If they are like the '11-'16 models....all gas SRW trucks have vacuum brakes. All diesel trucks, and gas DRW's, got hydroboost.
Some believe that a SRW F-350 is significantly different than a F-250 but as stated previously, the trucks are mostly the same. In fact, a F-250 can be equipped to be nearly identical to a F-350. I know because I ordered my truck to be just that. Every aspect of my truck is 100% identical to the equivalent F-350 with the exception of the rear springs. My spring pack has three in the main plus the an overload. A 350 would have four in the main. That is the complete list of mechanical differences. I needed the capability of a 350 but my truck also needed to be a Class 2 vehicle. Building a F-250 in this configuration costs the same as a F-350...as it should because it's the same truck!
Ford derates the Dana axle in my truck to 6340 pounds and lowers the tire pressure to 65 psi. They probably derate the axle because the tire pressure is lower. I only made two changes to my truck for towing my fiver. I increased the tire pressure and added StableLoad upper overloads. With my 12,000 pound GVW fifth wheel connected, I still have a slight rake and the truck handles perfectly. Haven't scaled it yet but I'm certain that the pin weight is in the 2200-2500 range when fully loaded.
"Upgrading" to a F-350 SRW would gain me absolutely nothing other than an extra 1500 pounds on my payload sticker and stickers don't help to pull trailers.
Some believe that a SRW F-350 is significantly different than a F-250 but as stated previously, the trucks are mostly the same. In fact, a F-250 can be equipped to be nearly identical to a F-350. I know because I ordered my truck to be just that. Every aspect of my truck is 100% identical to the equivalent F-350 with the exception of the rear springs. My spring pack has three in the main plus the an overload. A 350 would have four in the main. That is the complete list of mechanical differences. I needed the capability of a 350 but my truck also needed to be a Class 2 vehicle. Building a F-250 in this configuration costs the same as a F-350...as it should because it's the same truck!
Ford derates the Dana axle in my truck to 6340 pounds and lowers the tire pressure to 65 psi. They probably derate the axle because the tire pressure is lower. I only made two changes to my truck for towing my fiver. I increased the tire pressure and added StableLoad upper overloads. With my 12,000 pound GVW fifth wheel connected, I still have a slight rake and the truck handles perfectly. Haven't scaled it yet but I'm certain that the pin weight is in the 2200-2500 range when fully loaded.
"Upgrading" to a F-350 SRW would gain me absolutely nothing other than an extra 1500 pounds on my payload sticker and stickers don't help to pull trailers.
This brings up the question I’ve never been able to find an acceptable answer for. Has there ever been an incident where someone (non commercial) towing over the trucks stickered/registered rating was involved in an accident, and was cited, sued, or charged because of it?
I believe this occurs frequently, not the accident part, based on what I read on the various forums, truck and rv alike. Not a real sample size, I know.
I too tow with a 250, but I only tow a Jeep on a steel deck car hauler, probably 7k max. This is well within my 3k+ payload, even if I add a lightweight truck camper. I just wonder if my work to buy a truck with enough payload even matters.
I dont want want to rehash the capability vs sticker debate. I just wonder if anyone has firsthand experience with the scenario I asked about.
As far as the "extra leaf."
From 2011 to 2014 ALL SRW F-350's came with 3 and an overload and topped out at 11,500 lbs.
The different 4 leaf pack became the standard 350 pack I believe in late 2016 but I'm not sure.
The change had NO effect on payload.
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