STRIKER1
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Joined: 08/07/2010
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hello all! new here and here are my numbers. got some questions.
tow vehicle is a 1999 f250 7.3 srw crewcab.
pulling a 2006 coachman 25ft 5th wheel. (listed dry weight of 7k)
I pulled on the scale in carlin nevada, just fueled up. with me, wife, kids, and ALL our camping supplies for our 14 day trip. these were the 4 numbers they gave me.
steer axle 4800 (sticker on truck door says 5200)
drive axle 5240 (sticker on truck door says 6084)
trailer axle 6980
gross weight 17020
first question, the sticker on my trailer says dry weight of 7k. how is it that my trailer axle weight is less than that LOADED?? Next, any way to get my pin weight from thease numbers. am I correct to add the drive axle/steer axle weight to get my GVWR? that is 10k. putting me over the 8800 GVWR of the truck.
am i looking at this correct? thanks.
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sirdrakejr
Las Vegas, Nevada
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Joined: 11/18/2001
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You are correct. The trailer weight is the total MINUS the pin weight for the wheel's weight. If the pin weighs about 1600# and the wheel weight is 6980, the the total trailer weight will be the total of the two: 8580#.
Sounds about right to me and the truck should handle that well. You also need to weigh the truck with everything EXCEPT the trailer on it. Then you will have the true figures for the trailer and truck separately.
Frank
2011 Palomino Maverick 1000SLLB on a 2004 Dodge Quadcab CTD Ram3500 SRW long bed equipped with Timbren springs, Stable Load bump stops, Rickson 19.5" wheels/"G" range tires and a Helwig "Big Wig" rear anti sway bar.
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John Holveck
Midlothian, TX
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Joined: 10/14/2006
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I had a F250 Ford with 7.3 engine (I ordered it with the same axle as an F350) and pulled a trailer that weighed close to 14000 loaded (I can't remeber the exact weights but was a little more than the door sticker but neither axle was over weight) and never had any trouble pulling or stopping even in the Rocky Mountains. That 7.3 engine is about bullet proof. I made the mistake of trading for a 6.0 and didn't pull nearly as well. I now have a 2008 6.4 F350 DRW and pull a 15000lb trailer with a combined gross wt. of about 23400 and my owners manual says that the combined gross wt. is 23500 It makes a good combination.
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jmqualls
Soddy-Daisy, Tennessee, Hamilton
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Joined: 02/24/2004
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2010 Dodge dually 4X4 ATTA 50 gal in bed fuel tank
Sunnybrook 31BWFS
22,300 loaded
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Tireman9
Akron, OH
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Joined: 08/16/2002
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ramcneal wrote:Look at http://www.catscale.com and search for San Diego. Here's one that I found.
HWY 905 & Piper Ranch Road
Otay Mesa, CA 92154
There are probably other scales around, but you definitely want a certified scale. The CAT scale that I use has several large pads which make it easy to place each axle on a different pad. All except for the trailer axles since they are so close together. Not having separate values for the two or three trailer axles doesn't seem to be an issue since you just take the trailer weight and divide it by two or three (# of axles) and you know how much weight the trailer axles are carrying.
snip....
What happens if you're over the GCWR. Good question. There are people on this forum and other forums that I read which will say you'll end up in purgatory if you go over any of the ratings. GVWR, GCWR, GAWR. At the same time there are folks at the opposite end who practically feel if your truck can move the weight you're fine. I'm in the middle, but lean towards the first group. The manufacturers have built these trucks with work loads in mind. To go over those numbers means you'll wear out parts of your truck at a faster rate than normal at a *minimum*. Going over the ratings could also be extremely unsafe for you and others around you. snip....
Does that help?
Well the idea that your axles are equally balanced does not seem to be supported by some of the very limited data posted here.
One example where the owner took the effort to get the individual axle loads found Fwd axle 4170lbs, Cnt axle 3890lbs, Rr axle 4330lbs.
31% to 35% of total on that three axle unit. Now add the potential 2 - 3% or more side to side variation and you are not very equal especially if you are bumping up against a max load on a tire
One other item I do not see mentioned in this thread, but plenty of complaints in other threads is tire failures. Usually tires are the "weakest link" so if your GVWR is exceeded there is all probability that one or more of your tires are overloaded.
If or when you have a tire failure I hope it is only your RV that is damaged and there is no personal injury or damage to other motorists.
40 years experience as tire Design & Quality engineer with focus on failed tire forensics.
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AlbertG001
Calif.
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Joined: 07/23/2010
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Newbie-5th Wheel Rig. Just picked up a new Keystone HE Cougar Bunkhouse 33.5 ft. As soon as I left dealer went to truck scale with truck, driver and 5th. Have a Chevy 2010 HD Diesel 3/4 ton crew cab. standard bed. Rated: 23,000 Towing/Truck
Trailer Specs: 7410,Capacity 2590= Total 10.000 and Hitch 1390
Truck: Front=4300, Rear=3240 Total=7540 W/O 5th
5th wheel: 6180 Axles,
Truck hitched to 5th: Front=4320, Rear= 4620 total 8940 W/O Wife.
Total of both Truck & 5th = 15120
If I calculated correctly: Truck Front 4300, Rear 4620, Hitch wt. would be 1380 took above rears: 4620-3240=1380. Factory specs = 1390.
Truck rated at 9200 lbs.GVW
As mine sits: 4320+4620+20%/200+120 = 9260 Total
I searched to find a 33 footer with Bunks that I could tow without going too much over on truck capacity but I think this one should do fine.
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me1magoo
Texas
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Joined: 06/18/2006
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OK- I get to post again since I have a new trailer!
Empty- still the same
Front 4560
Rear 3020
GVW 7580- this is 20 lbs less that last time, I doubt I lost weight, probably less fuel!
Hooked up
Front 4540- dropped 20 lbs from front axle, shifted to rear of course, just a spit back of center on the rear axle
Rear 5560- Yep, thats a 2540 lb hitch weight! Still well under the 6200 lb GAWR for the rear axle
GVW 10100 and yes that is over the 9900 GVWR, so I am officially no longer allowed to participate in weight police discussions and my badge has been revoked!
Trailer axles- 7720
Total Trailer weight is 10,260 lbs and that is with the front storage all full and nothing in the rear bedroom or fridge or any other supplies, I figure it will balance out (for every thing we put in the back we will add something in the front bedroom or closet, etc)
Trailer GVWR is 12,250 so we have plenty of room to grow as long as I do it evenly and don't add more hitch weight I feel pretty comfortable.
GCW (Gross Combination Weight) 17,820 lbs
This pulls well and definitely is more noticable than my old 8000 lbs trailer and at 35' vs 28' long and 13' vs 12' high it is a lot more wind resistance and definitely gives the truck a workout! Not 'hard' to pull but definitely makes it grunt a little more to take off on a hill and get up to speed and also really puts a dent in the fuel tank on the highway at 65!! No faster though, 60 is my normal, 65 is max.
Mat
'05 Dodge 3500 SRW converted to DRW 4x4 QC LB SLT- CTD 325HP/610TQ w/ 6 speed manual- plus a little triple dog power...
'11 Crossroads Cruiser CF33LF- 35' triple slides, dual a/c's, LOFT over the rear BR
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me1magoo
Texas
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Joined: 06/18/2006
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Yeah, 20#, I was just saying that it's a "hair" back if anything. 20# less on the front axle could have easily been that I put my cooler in the back seat instead of the front seat on the way home and it bumped the tolerance on the scales since it goes in 20# increments.
Even if it was back a hair, I doubt 20# is going to cause my front wheels to push in a turn! Anywho's- it rolls nice and I like it. I think I might upgrade to a set of airbags just to set up a bit, the lights are kind of shooting the sky with the rear suspension setting firmly on the overload springs. They are not compressed by any means, but the pads are firmly contacted against the springs when stopped and surely really press on those "woopdie doop" bridges....
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RockRiver
Panhandle of Texas
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Joined: 08/18/2010
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My whole rig weighs 19,470 pounds.
"Rig" consists of a 2007 Chevy DuraMax, Crew Cab, Dually (with my wife & daughter inside + a full tank of fuel); and a Holiday Rambler Alumiscape, 32 foot, loaded to the gills with food, bedding, 3 bicycles on the back, etc.
When I rolled my pickup off the scale, only the trailer remained on the scale. The weight went to 8800 pounds, but I realize that's not trailer weight, as there was a considerable amount on the tongue (weight on the truck).
2007 Chevrolet dMax/Allison(LBZ), one ton, dually, crew cab w/PPE Standard
2003 Holiday Rambler Alumiscape, 34'
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DW-gray
Lompoc, CA
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Joined: 01/05/2009
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Here is an update from my first posting. I recently had an official weigh-in at a rally. (2 people in truck, full fuel tanks, fully loaded, no water)
Truck without trailer attached:
Front Axle: 4,525
Rear Axle: 3,500
GVW: 8025
Truck with trailer attached:
Front Axle: 4,675
Rear Axle: 6,950
Total Weight: 11,625
Trailer Axles:
Front: 4,975
Middle: 4,375
Rear: 4,850
Total Axle Load: 14,200
Total Pin Weight: 3,600
Trailer Gross Weight: 17,800
Gross Combined Vehicle Weight: 25,825
Dave Gray
RV Safety Educator & Consultant
08 Dodge Ram 3500 4X4, Dually, 6.7L Diesel, 09 Heartland Cyclone 4012
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