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Old 02-09-2019, 08:08 PM   #31
rhagfo
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Originally Posted by roadglide View Post
Don't freak out my guess is over half the folks towing are over loaded one way or another, it don't make it right but that's the way it is . Make sure your tires have load index at least 3500 each invest in air bags .
If you look back back at post #12, based on the empty weight weights and then adding 1,200# to the 5er, OP will be within 480# of the GVWR of a 3500 SRW. The OP would be better off to take any money he would spend on “upgrading” the current TV, and applying it to a larger TV.
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Old 02-10-2019, 11:02 AM   #32
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Originally Posted by CWtheMan View Post
I did the math on that trailer using Keystone specs before I wrote about the axles. You'd have to show me a picture of it's certification label to convince me Keystone hasn't deratred them down to conform with the trailer's GVWR.


Brochure information is not official. The vehicle certification information is certified by the vehicle builder. They are allowed to set GAWR values below the axle manufacturers certified values.
The axle rating on my Alpine 3301GR is 7,000 pounds each per the VIN tag on the side of the camper. The GVW is listed as 15,000 pounds also per the VIN tag on the side of the camper. The tires it came with are ST235/85R16. The sidewall weight rating is 4400 pounds @ 110 PSI.
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Old 02-10-2019, 12:09 PM   #33
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Originally Posted by Don_T View Post
The axle rating on my Alpine 3301GR is 7,000 pounds each per the VIN tag on the side of the camper. The GVW is listed as 15,000 pounds also per the VIN tag on the side of the camper. The tires it came with are ST235/85R16. The sidewall weight rating is 4400 pounds @ 110 PSI.

I'm surprised that Keystone is doing that with their axles. It invites the trailer owner to overload their trailer. Two axles rated a 7000# plus a hitch weight of - maybe - 2500# would, if loaded to max GAWR cause the trailer to be 1500# over GVWR. Not good numbers for those not experienced enough to avoid it.


Our area RV show is next month. I'll be sure to inspect all Keystone trailers for that trend. It has never been the practice to do that in the RV trailer industry.
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Old 02-10-2019, 12:15 PM   #34
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Originally Posted by CWtheMan View Post
I'm surprised that Keystone is doing that with their axles. It invites the trailer owner to overload their trailer. Two axles rated a 7000# plus a hitch weight of - maybe - 2500# would, if loaded to max GAWR cause the trailer to be 1500# over GVWR. Not good numbers for those not experienced enough to avoid it.


Our area RV show is next month. I'll be sure to inspect all Keystone trailers for that trend. It has never been the practice to do that in the RV trailer industry.
I don’t know their reasoning but I do know I am happy as the tires are rated far higher than the weight they carry. I have 12,300 pounds total on the trailer axles and that the tires are rated for 17,600 pounds total. I have had my fair share, if not more, of trailer tire issues when they are rated just high enough to pass.
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Old 02-10-2019, 12:25 PM   #35
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Originally Posted by Don_T View Post
I don’t know their reasoning but I do know I am happy as the tires are rated far higher than the weight they carry. I have 12,300 pounds total on the trailer axles and that the tires are rated for 17,600 pounds total. I have had my fair share, if not more, of trailer tire issues when they are rated just high enough to pass.

I was still wondering about the overweight thing and it struck me that those that do it often, may not know what their king pin rating is. It's a serious weak link structural item many overlook. I went and got this picture from my files.

www.irv2.com/photopost/showfull.php?photo=29699


That's from my RV show picture files. I don't remember what trailer I got that from but I think it was a Heartland Landmark.
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Old 02-10-2019, 12:37 PM   #36
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Originally Posted by CWtheMan View Post
I was still wondering about the overweight thing and it struck me that those that do it often, may not know what their king pin rating is. I went and got this picture from my files.

www.irv2.com/photopost/showfull.php?photo=29699


That's from my RV show picture files. I don't remember what trailer I got that from but I think it was a Heartland Landmark.
The original pin box on my camper was rated at 16k, the Goose Box I have now is rated at 20k.

I know of someone that has “someone” looking over his shoulder as he must have more than 5,000 pounds pin weight. He actually has a home shop instead of his bedroom over the pin. It is an old triple axle camper he lives in. Pulls it with an old beat up F350. I would not want to be on the road with him, but he has been doing it for years. I also met two couples this past summer that were pulling mid size 5th wheels with 1/2 ton pickups. Both had Timbrins and the truck frames were hard on the axles. One was a Ram, the other a Toyota. They both claim to have been all over the country like that.
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Old 02-10-2019, 12:41 PM   #37
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I've seen so many cases where people go over the limits and then tell others that since they've done it with no problems, others should too. There was a video posted on one of the threads on this site a couple days ago which showed a number of folks pulling beyond the limits of the tow vehicle and having the trailer get away from them. I wonder if before their "accident", if each of them would have said "I've been doing this for years and there's no problem"?
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Old 02-10-2019, 12:47 PM   #38
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Originally Posted by MarkEHansen View Post
I've seen so many cases where people go over the limits and then tell others that since they've done it with no problems, others should too. There was a video posted on one of the threads on this site a couple days ago which showed a number of folks pulling beyond the limits of the tow vehicle and having the trailer get away from them. I wonder if before their "accident", if each of them would have said "I've been doing this for years and there's no problem"?
You are absolutely right! I don’t like when someone can justify, in their minds, that it is ok to tow overweight. I think it is wrong for them to advise others it is ok to do the same. The more overweight a combination is, the more difficult it is to keep under control in an emergency. I think there are a lot of people that don’t think about that. I just do the best I can to stay out of those discussions, they don’t seem to end well.
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Old 02-10-2019, 05:39 PM   #39
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Originally Posted by AlpineKeith View Post
Thanks. The trailer is ok. I am referring to my TV GAWR.


Thanks for the clarification.
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Old 02-11-2019, 02:45 PM   #40
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Originally Posted by AlpineKeith View Post
Thanks. The trailer is OK. I am referring to my TV (Rear) GAWR.
Keith, do you have a plan going forward? I know that is a tough question, you are currently pushing the numbers for an F350 SRW!

I wish you the best!


Theses are Keith's numbers that I placed in a more logical order.

2016 F250 6.7 diesel
3.55 axle ratio
GVWR 10,000
GCWR 23,500

2019 Alpine 3400RS
GVWR 15,0000
Keith's "Dry" 5er weight 12,580#

scale info: Truck Only: Steer axle 4,860#
Drive axle 3,540#
Gross Wt 8,400#
This means Max Payload of 1,600#

Truck and Trailer: Steer Axle 4,840#
Drive axle 6,180#
TV GVW 11,020# 1,020 over GVWR, and only 480# short of F350 SRW GVWR.

Pin as scaled 2,620#
Trailer Axle 9,960#
Current (empty) Trailer weight 12,580#
Gross Combined Wt 20,980#

Sorry, if that is empty, and your F250 is loaded for camping, you are likely going to exceed the GVWR of a F350 SRW which is 11,500#.
It is time to be looking at a DRW to carry what you have. If you don't mind changing TV brands, current Ram 3500 SRW have a GVWR of 12,300#, which could likely cover the weight of that 5er, you will still be better off with a DRW TV.


Ford 2016 Towing guide see page 10.

https://www.fleet.ford.com/resources...e_r2_Oct23.pdf
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