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08F250_6.4L_Crew
Rear Axle Rated at 6100#.
CAT Scales with and without 5th wheel:
Truck: 5180 steer, 3580 Drive, 8760 Total
Truck+5er: 5240 steer, 7120 Drive, 10140 trailer axle, 22500 total
So hitch (King Pin) weight is 3540#
It would appear I am 1020# over on rear axle.
I have the Firestone Air Bags, but also understand they are for leveling and not added capacity. I know I can upgrade springs and other solutions.
But my question is this: Where is the weakest link in this rear suspension?
Doesn't make sense to upgrade springs if bearing are weakest link etc.
It's your tires that is limiting weight, do some research and see what the F350 was using for your year and what the weight rating is for the tires are. You may have to change to a wider wheel to gain weight rating.
Actually hes not really under trucked. The 250/ 350 are basically the same animals. He has stated that there are airbags on the truck which is equal or better than the 350 overloads (which he might have already depending on added options).
From the 08 brochure
Using op numbers trailer weighs 13,680#, Ford specs 15,200#, under weight there.
OP GCWR 22,540#, Ford specs 23,000#, under weight there.
OP front axle weight loaded 5,280#, Ford specs 6,000#, under weight there.
OP rear axle loaded 7,120#
Fords specs for the 250 6,000# putting him over by 1,120# but the 350 specs are 7,280# which put him under by 160#.
Depending on what tires he running with is the difference.
Post #5 shows the specs and it's within once you figure the tires.
The 250 vs 350 horse has been beaten to death resurrected and then beaten again. There are threads from the past that compared parts and there was no difference other than the add on options and a # emblem on the side of truck.
I personally think that a dually should be used for heavier loads including the weight of this 5th but guys can't afford to have 2 trucks or want to use a dually as a grocery getter. I've been in 2 emergency/ split second maneuver pulling the 5th. Once when some ding dong was carrying 2x4s and 4x4s unsecured in his pick up and tailgate down. A dozen projectiles bouncing in the road. I slammed the brakes and swerved luckly not getting them on the upright bounce but laying flat on the road as they slid. I have no dought the dually stability kept from having an accident. The other time when someone pulled into traffic on a 65 mph road and I guess their vehicle wasn't up for acceleration.
I use an '11-350 srw to haul a 5er with about 2750 on the pin, and its about all I'd want. That leaves me a few hundred pounds for water, wood etc. I certainly wouldn't want 3500 on a 250/srw. I know about the "dead horse" but I'm not sure it's dead. According to official Ford data the 350 srw has bigger axles and bearings. I've heard those who claim this was a "typo". I haven't researched it so I don't know the rock-solid answer. Regardless, I think 3500 (+) is asking for trouble with a srw. Imagine what the axle weight is with some tools, water, wood etc. God help him if he blows a tire in the mountains.
Ok, good to know. Still the weights on the door sticker are the official number. I know a lot of peopke have been getting away with violating the heck out of that number, but I just don't understand people who buy a trailer WAY over what the truck is rated for and then go surfing the web looking for approval. I was up at Tilamook a couple years ago and camped next to a Dodge 2500/Cummins (an older one at that) pulling a 42' toy hauler. He assured me that with 70 psi in the bags it carried the trailer with no problems.
12-09-2017, 08:04 AM
