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Old 05-02-2012, 08:52 AM   #15
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Wow - lots of variables! Thanks all.
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Old 05-02-2012, 09:15 AM   #16
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Wait...one more variable. After all computations are done consider one more. If you really like camping like a lot of us do you might want to trade up your 5th wheel to a larger one. Consider a dually and take that varible out of the equation. That way you won't have to change trucks. Just a thought. Trading trucks can be expensive.
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Old 05-02-2012, 10:48 AM   #17
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Ah.... yes it is. (SRW v-10 to DRW diesel)
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Old 05-05-2012, 10:34 PM   #18
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To simplify your calculations, use this online fifth wheel/tow vehicle calculator.
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Old 05-06-2012, 06:28 AM   #19
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Ray, that generic calculator works reasonably well only if you include both the GVWR of the tow vehicle and the actual weight (GVW) of the wet and loaded tow vehicle.
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Old 05-06-2012, 12:39 PM   #20
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Has anyone considered the stopping power of a 3/4 ton versus a 1 ton or 1 ton dually.

The brakes may not be able to stop as safely.
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Old 05-06-2012, 01:01 PM   #21
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Quote:
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Has anyone considered the stopping power of a 3/4 ton versus a 1 ton or 1 ton dually.

The brakes may not be able to stop as safely.
The trailer has its own brakes, and the weight ratings assume that the trailer can stop itself without needing larger brakes on the tow vehicle.

Brakes are part of the GVWR of the tow vehicle. If you don't exceed the GVWR of your tow vehicle, then you shouldn't have any problem stopping.

Of course that assumes that your trailer brake controller and the brakes on the trailer work as designed so the trailer brakes can stop the trailer, regardless of how big a trailer you're towing.
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Old 05-06-2012, 01:19 PM   #22
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With my luck, and Murphy, to many things can go wrong.

My opinion, bigger is better.
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Old 05-06-2012, 01:31 PM   #23
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You are probably right Smokey from an official standpoint but I would think the MFGRs would designed braking base on both GVWR and GCWR. In any of the tow guides I have looked at electric brake requirement was never mentioned to satisfy the GCWR. But all I have looked at is older tables.
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Old 05-06-2012, 09:39 PM   #24
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The brakes on a vehicle are = to the GAWRs.
Example is a tandam 6k axle trailer has 12000 lb of braking.

The brakes on a (example) '12 F350 4x4 crew cab 6.7 are 5600 FAWR and 7000 RAWR for a total of 12600 lbs of braking.

The manufacturers do their own testing and determine the ratings. They then submit the vehilce to NHTSA "minimum" testing per the FMVSS's. The FAWR/RAWR/GVWR are on the vehicles certificaton placard.

This is one reason state/fed vehicle weight codes use the trucks axle/tire load ratings for how much camper or cattle or freight or beer or pin weight we can carry on a truck or trailers axles.
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Old 05-07-2012, 10:21 PM   #25
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All that said to be perfect. I grew up when we had 200hp cummins to tow 79,000 lb with very limited air brakes and a manual parking brake. My first tow rig with my current 12,500 5r was a 92 dual wheel-3500 dodge 5.9. Not enough power to get out of it's own way and nearly no brakes. My current ride is a 2500 5.9, sw Dodge. Has lots of power and adequate braking. It's gcvw is only 16000 lb. (overloaded) I have 50,000 miles of towing with this combo, including 2 trips to Alaska. Some folks do not have unlimited funds for a $50,000 truck. Just saying what has worked well for me.
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Old 05-15-2012, 04:45 AM   #26
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I suppose someone should state the obvious. I have 50% more rubber on the road with my 1 ton, crew cab dually than does the traditional truck. Been there, done that, had both and would not dream of NOT having a dually ever again.
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Old 05-15-2012, 05:13 AM   #27
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Weight Limitations

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Originally Posted by JIMNLIN View Post
Yeah, don't know why Rusty keeps bringing up the commercial law thing as all vehicles on the road come under fed or state axle weight limits. The tort thing is way over played and simply a scare tactic.

There are no seperate axle weight codes for a truck pulling a RV or a commercially registered truck pullin a trailer. One and the same.
Lawsuits involving overloading in the real word involve being over legal load limits, even in Texas.
Hi

We see a lot of different ideas here.

Now I will tell you about the law in Florida. I am not talking about civil law suite I am talking about laws that put you in jail.

Many years ago the Florida Supreme Court put motor vehicles in the “dangerous tool” category.

The following has nothing to do with the Commercial Vehicle regulations.

So now you have a serious accident. The definition of a serious accident is “when one or more vehicles are towed form the accident".

Now lets assume you are in a serious accident in Florida towing your 5th wheel RV with a ¾ ton truck. If there are not any serious injury’s it is the investigating officers option to tow your truck and trailer to a scale. If there are serious injury’s it is mandatory.

If you are in excess of any of the following weight limitations you are in line for a felony charge. GCW limitation, any axel weight limitation, and any tire weight limitation. There isn’t any reference in the FHP manual as to GVW rating or a Tow rating when the unit is a combination unit.

And further to this for you fellows that tow a trailer behind your 5th wheel. In Florida the traffic code address this for non commercial vehicles. For non commercial vehicles the double trailer tow is prohibited by the Florida traffic regulations.

I had a good friend that retired from the Florida Highway Patrol. His job was Vehicular Homicide investigation. He allowed me to research a lot of these things in his investigation manual. After retirement he performed Vehicular Homicide invetigations for attorneys until he got “tired of looking at dead bodies” his quote.

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Old 05-15-2012, 09:17 AM   #28
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That is good in a way. Now seriously, do they have 'informed' salespeople down there, or like everywhere else do they have 1/2 ton 'towables' that they sell to the "unknowing"?
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