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Old 09-18-2014, 07:14 AM   #11
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Re: My Gawd....

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Originally Posted by AndrewST
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If AndrewST leaves his home brew Sporty here much longer, I think I'll earn a possessory interest in it.
Sorry will be gone this winter... no reason to keep it sleeping there
Don't be silly. It's happy here. Baja for Spring beak, so plan on that instead of a Winter arrival time. Two weeks at Larry's place. Make it so.
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Old 09-18-2014, 11:01 AM   #12
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Re: My Gawd....

carringb, why must you cause me so much stress? Okay, did a little research into this. Ford jokes aside, this was the result of the trailer setup, more than anything. The added camper weight aft of the rear axle didn't help, but that wasn't the cause (in my most humble of opinions). First, the freakishly long extension added to the trailer was the number one cause of this (again, my opin). The trailer was loaded with a race car, and all the associated items that do with that (reportedly a big block, front engine and that weight, along with tool box, etc, was, presumably, forward of the trailer axles). Was using a drop hitch (well, the opposite of drop as it raised the ball approx 4" above the receiver tube) added to the effect. All this created a massive amount of force well aft of the Ford's rear wheels. Going over a bump in the road would would increase that force by X and, I suspect, caused the frame to fail. Of interesting note is the front camper tie down placement. If done correctly, the mounts (if frame mounted), should be more forward. In fact, this guy's setup looks like it's just a bar below the frame. Probably some home brew deal that was not well thought out. You can almost make out the COG sticker on the side of the camper. Even after the carnage, the COG is just past the rear axle (not even past the trailing edge of the tires). In a nutshell, this ended up being a teeter totter with a giant fat kid on one end and a string bean on the other. Having an additional fat kid sitting in the middle of the teeter totter (Camper) would have little effect either way. I had similar concerns when shopping for this beast. The previous owner towed his boat that, reportedly, weighed more than out boat. Still, it gives me pause, even though I have a Super Hitch and Super Truss. Never an issue with our former Bigfoot and boat. This sucka weighs approx 1k more. I wonder if I could recreate this experiment? You know I'm going to try.
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Old 09-18-2014, 12:27 PM   #13
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Re: My Gawd....

I say blame the frame failure on the 6.0L
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Old 09-18-2014, 12:54 PM   #14
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Re: My Gawd....

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I say blame the frame failure on the 6.0L
Yeah baby
If it was a 7.3 it would have never happened.
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Old 09-18-2014, 01:55 PM   #15
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Re: My Gawd....

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Hey I've seen that camper before!

Silly Ford.

Now, I'm going to have nightmares tonight. I just know it (update: I did). Is there a thread associated with that pic somewhere? Looks like the greatly reduced tongue weight cap, due to that overly long extension, plus that huge/heavy race trailer that needs an electric jack, was the culprit. The cog of these campers is not too far aft of the rear axle.
Anyone have a link for this pic? And maybe the story behind it?
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Old 09-18-2014, 02:24 PM   #16
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Re: My Gawd....

I couldn't locate the orig post (on a racing site, I believe). The "I heard from a friend, whose neighbor once dog sat their cousins' yellow lab in the 80's, said..." kinda sorta deal provided the info on the contents of the race trailer. Looking at the pic (and without pics of the front end or rear of the trailer), puts the problem the the trailer situation (weight, hitch setup, ridiculous extended tongue). That said, the driver could have hit something and/or was rear ended, which could/possibly cause a similar failure, but I think the stinger would have snapped or at least bent forward, had that happened, and the hitch looks unaffected in the small pic. The extended tongue on that trailer is almost as long as my previous run-on sentence.
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Old 09-18-2014, 02:26 PM   #17
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Re: My Gawd....

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Repeat after me, 'my name is deminimis, and I have a problem'


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Old 09-18-2014, 08:12 PM   #18
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Re: My Gawd....

Sorry for creating any undue anxiety. Here's my take on it....


That camper is probably in F450 territory. While the COG is not far back, its still aft of the axle. Frame failure don't happen often, but they do. Axle failures are far more common. Either way GVWRs exist for a reason. Of course, most folks don't have problems but ratings are set for the worst of days, not the best of days. It usually takes a combination of overloading and adverse conditions for a problem to occur.

Him pulling the trailer did not help things out, but I'm not sure I'd blame the trailer alone. He extended the tongue on the trailer, instead of using a hitch extension, so he had less tongue weight on the truck than if he used an extended hitch. That trailer isn't that long. I'd be surprised if his tongue weight was over 2500 pounds. I've towed 10s of thousands of miles with tongue weights over 3,000 pounds with no ill effects other than a few broken and bent wheels, and one busted diff carrier when I jumped the whole thing over a water bar going about 50 MPH (it wasn't there the prior years).

The problem with truck campers is the rear-bias COG, combined with a very high COG causes extreme weight transfer, which causes resonant loads that don't exist with other heavy loads. This happens with big trucks too, so that's why some body configuration require fully sleeved frames.

Here's another recent frame failure:
http://www.rv.net/forum/index.cfm/fu...pging/1/page/1

To be honest though, since you aren't towing I'd be more concerned about stopping ability. I'm not a fan of the GMT-800 brakes. They leave lots to be desired, even when not hauling a camper.
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Old 09-18-2014, 08:33 PM   #19
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Re: My Gawd....

Current f450s with factory beds are just 350s with some heavier bolt-ons. I still say it was the trailer more than anything. Doesn't look like we'll ever know unfortunately. I think the wife should let me get a F550 just to be safe as I'm right at cap (camper dry).

Zero issues stopping the Chev, when towing or just heavy cargo. Of course, I'm chipped with a sweet heavy tow switch that allows turbo braking which certainly helps, but zero issues with braking power.

Trailer brakes weren't working for this load.

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Old 09-19-2014, 09:14 AM   #20
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Re: My Gawd....

Perplexing follow up: Showed the pic to the wife and told her we had two options: Sell the camper (I just want an old Bigfoot for now and that's all I've wanted for some time now) or get a F550. She said to get a F550. Damn. I've been enjoying car/truck payment-free living for years now and I had somewhat hoped to continue that lifestyle. Oh well.

Thing is, a month back, we were camping in the camper for a week (all four of us). That was the first time she did not constantly complain about something to do with our chosen camping platform. Guess I could have predicted her response when I gave her the choice above.
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