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I have a 2004 Ford F-350 crew cab. I want to increase the GCWR so I can tow my 14,000 pound bumper pull trailer. The manufacturer rating for that year says it's GCWR is 20,000 pounds combined weight. The GVWR for the truck is 9,900 pounds, that leaves me 10,100 pounds I can legally tow. I've talked to the Ford garages around here about getting that increased to 24,000 pounds so that I would be legal, and they tell me that's not possible. In the manufacturer's book for 2004, all models F-250, F-350, Excursion, and dual wheel trucks have the same 20,000 pound GCWR. This doesn't make sense that a 3/4 ton can tow the same amount as a dually. There has to be a way to increase the GCWR on these older fords, if anyone has any answers it would be greatly appreciated.
You cannot change the capacity amounts on the sticker. In other words, you could pull axles from a 2 ton truck and Ford isn't going to reissue the sticker with a higher capacity amount. You'll never be "legal" at the amount you want to tow.
When I was shopping for a new truck it was very difficult to find a 2016 Superduty that was actually rated to pull a bumper pull trailer more than 12,000 lbs. Most were lower than that around 11,500. I held out for the 2017 that has a bumper pull rating of 18,000 lbs. Actual rating is lower, that's the max for a SRW.
I have a 2004 Ford F-350 crew cab. I want to increase the GCWR so I can tow my 14,000 pound bumper pull trailer. The manufacturer rating for that year says it's GCWR is 20,000 pounds combined weight. The GVWR for the truck is 9,900 pounds, that leaves me 10,100 pounds I can legally tow. I've talked to the Ford garages around here about getting that increased to 24,000 pounds so that I would be legal, and they tell me that's not possible. In the manufacturer's book for 2004, all models F-250, F-350, Excursion, and dual wheel trucks have the same 20,000 pound GCWR. This doesn't make sense that a 3/4 ton can tow the same amount as a dually. There has to be a way to increase the GCWR on these older fords, if anyone has any answers it would be greatly appreciated.
You may be able to tow more than 10,100 lbs. because some of the trailer weight is carried on the truck and becomes part of the truck’s payload. Check the 2004 RV and Trailer Towing Guide for max trailer weight specs (and also check the associated fine print).
The MY2004 250, 350 SRW, and 350 DRW all share the 20K lbs. GCWR Limit, depending on drivetrain configuration. I suspectt that this was the result of Ford being cautious when they introduced the new 6.0 diesel and the new 5R110 trnasmission for that MY.
This article identifies MY2005 improvements Ford made to the Super Duty. Instead of trying the modify your 2004, what about trading it in on a gently-used MY2005+ duallie?
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