Forum Discussion
BlindGuynAR
Aug 22, 2013Explorer
Use this info how you choose. Every truck is different and what one person is ok with someone else isn't.
For sure a 1 ton with training wheels is the going to be a tow monster, but can it be done with less? You better believe it since I see it everyday.
Also don't listen to someone saying you can pull it, but can you stop it? Your 250 is "rated" to pull/stop 15,500 lb fifth wheel. (With the use of trailer brakes with is a requirement on f350 as well)
Only pin weight is stopping you. Well read on brother for the research I did.
Certain f250 SRW's and f350 SRW's are the same truck with the same axle it's just de-rated on the f250.
Part#'s are the same for axle shafts and axle housing here are part#'s
The housing is part # BC3Z*4010*D the driver axle is BC3Z*4234*C and the passenger is BC3Z*4234*D look them up. They are the same between 250 and 350 for certain models.
So the rawr rating of 6100 on an f250 vs. 7280 on f350 isn't axle strength. In fact sterling rates the axle at around 9300 lbs period..
In this case the f250 it is springs, lift blocks, and tires that to bring it down to 6100 and reduce its payload.
First tires:
I wonder if anyone reads the white sticker in the door? Does anyone catch the words "with tires rims psi cold" the last word on each line.
Example:
6100lb WITH
LT275/65R-20E TIRES
20x8.0J RIMS
65 PSI COLD
Pay special attention to the word "with" since the means its means if that setup changes the rating changes.
Anyway read this as Its rated at 6100lb's "with" those tires and those rims at that psi.
In fact those tires have a max rating of 3750 per tire at 80psi which is the psi on an f350 door tag. Lets do the math. 3750 x 2 = 7500 max load.
Well that's pretty close to 7280 for the f350's axle rating so lets see what else it can tell us about that same tire. 3750 x 2 = 7500 / 80 = 93.75 lbs of load per psi.
Now lets use that and the 65 psi rating for the f250. 93.75 x 65 = 6093.75. I think we just found the 6100 lb load rating of the f250 axle.
Now springs/blocks:
The f350 has an overload spring where the f250 does not.
So the extra spring will resist more weight and ride more level. This is even more true since the back of an f350 sits 2 in higher due to 4 in lift blocks rather than 2 in on an f250.
Looking at the specs on the springs you'll see the overload is rated to deflect 465 lbs per spring x 2 = 930 extra load support.
So a combination of this extra 930 lbs extra load capacity, in addition to sitting 2 in higher in the rear, and the tires give the f350 it's higher rating.
If someone were wanting to exceed a f250 rating all aspects would need addressed not just tires to bring it up to an f350 level.
To be clear the little white sticker is a requirement between ford and the government. You aren't bound to it in any legal form.
Think about it. If you say you put diff tires on the truck the sticker is invalid at that point since size or rating would no longer match sticker. Change gears same deal.
The door sticker states GAWR":" 6100lbs "with" (it actually says "with") that combo ford rates it at a certain load. The ":" is important as it says everything after is an encompassing statement of GAWR.
again i read this sticker as Its rated at 6100lb's "with" those tires and those "rims" at that "psi" "cold".
So lift a truck,chg springs, new tire/rim combo or gears and the sticker no longer applies. Think it I were to put donut wheels and hook up a fiver could i blame ford when it didn't work since the sticker was there? No since the sticker no longer applied.
If you agree changing tires, adding a lift kit, changing springs, or after market rims aren't illegal to do to your truck then by definition the sticker on the door can't be legally binding since we just legally invalidated it without a court or a lawyer.
Anyway make your own call on it.
For sure a 1 ton with training wheels is the going to be a tow monster, but can it be done with less? You better believe it since I see it everyday.
Also don't listen to someone saying you can pull it, but can you stop it? Your 250 is "rated" to pull/stop 15,500 lb fifth wheel. (With the use of trailer brakes with is a requirement on f350 as well)
Only pin weight is stopping you. Well read on brother for the research I did.
Certain f250 SRW's and f350 SRW's are the same truck with the same axle it's just de-rated on the f250.
Part#'s are the same for axle shafts and axle housing here are part#'s
The housing is part # BC3Z*4010*D the driver axle is BC3Z*4234*C and the passenger is BC3Z*4234*D look them up. They are the same between 250 and 350 for certain models.
So the rawr rating of 6100 on an f250 vs. 7280 on f350 isn't axle strength. In fact sterling rates the axle at around 9300 lbs period..
In this case the f250 it is springs, lift blocks, and tires that to bring it down to 6100 and reduce its payload.
First tires:
I wonder if anyone reads the white sticker in the door? Does anyone catch the words "with tires rims psi cold" the last word on each line.
Example:
6100lb WITH
LT275/65R-20E TIRES
20x8.0J RIMS
65 PSI COLD
Pay special attention to the word "with" since the means its means if that setup changes the rating changes.
Anyway read this as Its rated at 6100lb's "with" those tires and those rims at that psi.
In fact those tires have a max rating of 3750 per tire at 80psi which is the psi on an f350 door tag. Lets do the math. 3750 x 2 = 7500 max load.
Well that's pretty close to 7280 for the f350's axle rating so lets see what else it can tell us about that same tire. 3750 x 2 = 7500 / 80 = 93.75 lbs of load per psi.
Now lets use that and the 65 psi rating for the f250. 93.75 x 65 = 6093.75. I think we just found the 6100 lb load rating of the f250 axle.
Now springs/blocks:
The f350 has an overload spring where the f250 does not.
So the extra spring will resist more weight and ride more level. This is even more true since the back of an f350 sits 2 in higher due to 4 in lift blocks rather than 2 in on an f250.
Looking at the specs on the springs you'll see the overload is rated to deflect 465 lbs per spring x 2 = 930 extra load support.
So a combination of this extra 930 lbs extra load capacity, in addition to sitting 2 in higher in the rear, and the tires give the f350 it's higher rating.
If someone were wanting to exceed a f250 rating all aspects would need addressed not just tires to bring it up to an f350 level.
To be clear the little white sticker is a requirement between ford and the government. You aren't bound to it in any legal form.
Think about it. If you say you put diff tires on the truck the sticker is invalid at that point since size or rating would no longer match sticker. Change gears same deal.
The door sticker states GAWR":" 6100lbs "with" (it actually says "with") that combo ford rates it at a certain load. The ":" is important as it says everything after is an encompassing statement of GAWR.
again i read this sticker as Its rated at 6100lb's "with" those tires and those "rims" at that "psi" "cold".
So lift a truck,chg springs, new tire/rim combo or gears and the sticker no longer applies. Think it I were to put donut wheels and hook up a fiver could i blame ford when it didn't work since the sticker was there? No since the sticker no longer applied.
If you agree changing tires, adding a lift kit, changing springs, or after market rims aren't illegal to do to your truck then by definition the sticker on the door can't be legally binding since we just legally invalidated it without a court or a lawyer.
Anyway make your own call on it.
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