Good Sam Club Open Roads Forum: Fifth-Wheels: CAT scale numbers hitched and not


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halcareric

Tennessee

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Posted: 02/06/23 01:49pm

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Hello all. First time weighing our rig after almost a year full time

2022 Ford F-350 Crew Cab 8' bed Dully Diesel 2x4 XLT
2022 Durango Gold 391RKF 42.5 foot 5th Wheel

Full tank of fuel (48 gallons). NO fresh water, grey tanks empty, black tank had maybe 15 gallons. Fully loaded like we normally do.

Truck had my wife and I, plus 3 dogs in crates in back seat. Portable Generator, and portable waste tank with 3 dog X-pens in bed. 2 bikes and an aluminum ladder on back of trailer.
--------------------------------
CAT Scale numbers. Truck and Trailer
Steer Axle: 4,800
Drive Axle: 7,260
Trailer Axles: 13,400

Total GVW: 25,460
------------------------------------------------

CAT Scale numbers: Truck ONLY

Steer Axle: 4,760 (diff of 40 lbs)
Drive Axle: 3,960 (diff of 3,300 lbs)

Gross: 8,720

If I did this correctly, this is my trailer gross and pin weight. Pin takes some of the weight off the trailer axles.

GROSS: 25,460 - 8,720 = 16,740 for trailer gross weight

Gross of Trailer 16,740
Trailer Axles only - 13,400
------------
Pin weight = 3,340

Truck specs as taken off door sticker:
GARW Front : 5,300
GAWR Rear : 9,900

GVWR: 14,000
---------------------------------------------
KZ Spec Tag

STOCK Trailer Gross Weight Rating: 16,000
STOCK Cargo Max: 2,850
STOCK Dry Hitch Weight: 2,570

Of course, KZ doesn't weigh each unit getting ready for shipment nor does the dealer after adding his or customers options.
I have no idea what the stock axles weigh nor do I know what the new axles weigh, same for the king pin.

I have the Flex Air pin box with a rating of 16,000 lbs
5th wheel Reese Hitch with a rating of 25,000 lbs

---------------------------------------------

We have a "Flex-Air" pin box
MORryde 7,000 lb independent suspension with disk brakes. These axles are heavier than the standard

Are we good, or bad?

* This post was last edited 02/06/23 06:23pm by halcareric * View edit history

fj12ryder

Platte City, MO

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Posted: 02/06/23 03:44pm

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Shoot, looks good to me. Similar to what I'm pulling with my RAM.

Did the door sticker actually show 15,200 lbs. for the GVWR?

Howard and Peggy

"Don't Panic"

dieseltruckdriver

Black Hills of SD

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Posted: 02/06/23 05:34pm

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dieseltruckdriver wrote:

halcareric wrote:

You are off almost 1,000 lbs on your pin weight. It looks like a simple math error. It's easy to do.

Rear pickup axle weight loaded minus empty.

Also it looks like you could have your pin a little farther forward, you are taking weight off the front axle. Ideally it wouldn't change, or add about what you are taking off it.

2000 F-250 7.3 Powerstroke
2018 Arctic Fox 27-5L

halcareric

Tennessee

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Posted: 02/06/23 06:22pm

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fj12ryder wrote:

Shoot, looks good to me. Similar to what I'm pulling with my RAM.

Did the door sticker actually show 15,200 lbs. for the GVWR?

Opps, nope.. it's 14,000 GVWR for the truck. I'll edit my post

halcareric

Tennessee

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Posted: 02/06/23 06:29pm

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dieseltruckdriver wrote:

halcareric wrote:

Thanks.. Yeah I made an edit to post and added that missing 1k. Thanks.
BUT, now to me, it looks like the pin weight is over what it should, meaning I have too much cargo in the pass through yes?

valhalla360

No paticular place.

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Posted: 02/06/23 06:56pm

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halcareric wrote:

Looks like the trailer is 740lb overweight.

Doesn't mean an instant failure but don't be shocked if it does.

Tammy & Mike
Ford F250 V10
2021 Gray Wolf
Gemini Catamaran 34'
Full Time spliting time between boat and RV

halcareric

Tennessee

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Posted: 02/06/23 07:41pm

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I've been told that part of a 5th wheel's weight sits on the Truck. Reason to subtract part of the trailers axle weight numbers. So, if my numbers are now correct, 16,740 minus axle weight of 13,400 is what's sitting on the truck, which is 3340. If I could get away with it, I'd drop the trailer on the scales by it self but you can't do that at a CAT scale

* This post was edited 02/07/23 11:57am by an administrator/moderator *

dieseltruckdriver

Black Hills of SD

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Posted: 02/06/23 08:08pm

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halcareric wrote:

SNIP
BUT, now to me, it looks like the pin weight is over what it should, meaning I have too much cargo in the pass through yes?

I guess I don't see a problem with your setup. You are well under your rear GAWR. Another number to look at would be your GCVWR, it should be on the tag with your axle weight ratings.

If it's more than 25,500 I would be OK with it, but your comfort level is up to you to decide.

When I first started truck driving (real trucks), an old timer told me to always drive 5 mph slower than where you feel comfortable. That advice hasn't failed me yet.

halcareric

Tennessee

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Posted: 02/06/23 09:08pm

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I don't go over 65, and if the roads are really crappy, 50 to 55. I will say tho, since we put on the Morryde independent suspension and disk brakes, it truly helps the ride comfort and the flex air pin box also.

* This post was edited 02/07/23 11:58am by an administrator/moderator *

fj12ryder

Platte City, MO

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Posted: 02/06/23 09:10pm

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Like I said, very similar to my setup. I pull with a 2018 Ram Dually Cummins, 14,000 lb. GVWR, with a payload around 5,900 lbs. The 5th wheel is a 2019 Momentum 351M, GVWR is 16,800 lbs., and the trailer weighs 17,400 lbs. I don't worry about it, and just motor on down the road. I very much doubt it will self-destruct. [emoticon]

FWIW, I don't know about Tennessee, but some states require a special driver's license if your total weight is over 25,001 lbs.

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