Good Sam Club Open Roads Forum: Towing: A trip to the CAT Scale
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 > A trip to the CAT Scale

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teejaywhy

Gilbert, AZ

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Posted: 05/24/20 02:58pm Link  |  Quote  |  Print  |  Notify Moderator

A visit to the scale this morning to see how my setup checks out.

Comments welcome.

Truck: 2007 GMC Sierra Classic 2500HD Crew Cab Duramax 4WD
Full tank of gas and one passenger, ARE truck cap.

Trailer: 2019 Nash 23D
Filled with camp gear, batteries, full propane, full fresh water tank.


(all weights in pounds)

Truck sticker:
GVWR: 9200
GAWR FR: 4670
GAWR RR: 6084

Trailer sticker:
GVWR: 7000

Truck only weigh:
Steer Axle: 4280
Drive Axle: 3160
Trailer Axle: 0
Gross Weight: 7440

Truck and trailer - WDH not engaged
Steer Axle: 3940
Drive Axle: 4340
Trailer Axle: 5680
Gross Weight: 13960

Truck and trailer - WDH engaged
Steer Axle: 4200
Drive Axle: 3940
Trailer Axle: 5840
Gross Weight: 13980

Everything seems kosher but please help me evaluate this data?

How to calculate trailer weight?
Gross wt 13960 - truck wt 7440 = 6520 (?)

How to calculate tongue weight?
Using weigh with WDH disconnected?
3940 + 4340 = 8280 - 7440 (truck only) = 840?

If I'm understanding correctly:
- Truck within spec
- Trailer within spec
- Tongue weight approx 13%
- WDH seems to be working

Anything I'm missing?

THANKS!!!

Tom


The Yost Outpost
Gilbert, AZ
2007 GMC Sierra Classic 2500HD, Duramax LBZ
2019 Nash 23D

lawrosa

Horry County

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Posted: 05/24/20 07:09pm Link  |  Quote  |  Print  |  Notify Moderator

Use this


http://towingplanner.com/ActualWeights/TravelTrailerCatScales


Mike L ... N.J.

2006 Silverado ext cab long bed. 3:42 rear. LM7 5.3 motor. 300 hp 350 ft lbs torgue @ 4000 rpms
2018 coachmen Catalina sbx 261bh


azdryheat

Tucson, AZ

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Posted: 05/24/20 10:04pm Link  |  Quote  |  Print  |  Notify Moderator

4340-3160=1180 wo WDH

3940-3160=780 w WDH


2013 Chevy 3500HD CC dually
2014 Voltage 3600 toy hauler
2011 Harley Ultra Limited
2016 RZR 900


Rover_Bill

NE. Ohio

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Posted: 05/24/20 11:52pm Link  |  Quote  |  Print  |  Notify Moderator

IMHO your WDH could use a little tightening.

Truck only weigh:
Steer Axle: 4280
Drive Axle: 3160

Truck and trailer - WDH engaged
Steer Axle: 4200
Drive Axle: 3940

The weight on your Steer Axle with WDH engaged should be greater than the truck only weight. Your numbers show the drive axle lost 80# while the drive axle gained 780#.


2015 GMC Canyon 3.6L V6 4X4 TowHaul SLE ExtCab Bronze
2016 Keystone Passport GT 2670BH
ReCurve R6 hitch, DirecLink brake controller
2005 Suzuki C50 2006 Suzuki S40

camp-n-family

London, Ontario

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Posted: 05/25/20 06:36am Link  |  Quote  |  Print  |  Notify Moderator

Rover_Bill wrote:



The weight on your Steer Axle with WDH engaged should be greater than the truck only weight. Your numbers show the drive axle lost 80# while the drive axle gained 780#.


No it shouldn’t. The idea is to restore weight removed from the front axle. It is usually very difficult to restore all of the weight and some vehicle manufacturers even say to only restore 50%. It should never exceed the unloaded weight.

Numbers here are about as good as they can be.


'17 Ram 2500 Crewcab Laramie CTD
'13 Keystone Bullet Premier 310BHPR
Hitched by Hensley


lawrosa

Horry County

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Posted: 05/25/20 06:38am Link  |  Quote  |  Print  |  Notify Moderator

Quote:

The weight on your Steer Axle with WDH engaged should be greater than the truck only weight.


Bad advice.. It should never go over original weight of truck empty..

80lbs within is fine.. it should tow well.

You could pull one more link on the chain or tilt the head back some.

but then back to the scales to see.

I would just leave it.. but thats me..

troubledwaters

Potomac

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Posted: 05/25/20 06:51am Link  |  Quote  |  Print  |  Notify Moderator

Yes you figured everything correctly. You're good, go camping.

Mike134

Elgin

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Posted: 05/25/20 08:19am Link  |  Quote  |  Print  |  Notify Moderator

camp-n-family wrote:

Rover_Bill wrote:



The weight on your Steer Axle with WDH engaged should be greater than the truck only weight. Your numbers show the drive axle lost 80# while the drive axle gained 780#.


No it shouldn’t. The idea is to restore weight removed from the front axle. It is usually very difficult to restore all of the weight and some vehicle manufacturers even say to only restore 50%. It should never exceed the unloaded weight.

Numbers here are about as good as they can be.


X2


2019 F150 4X4 1903 payload
2018 Adventurer 21RBS 7700 GVWR.

Cummins12V98

on the road

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Posted: 05/25/20 08:44am Link  |  Quote  |  Print  |  Notify Moderator

You do want part of your tongue weight to be transferred to the front axle!


2015 RAM LongHorn 3500 Dually CrewCab 4X4 CUMMINS/AISIN RearAir 385HP/865TQ 4:10's
37,800# GCVWR "Towing Beast"

"HeavyWeight" B&W RVK3600

2016 MobileSuites 39TKSB3 highly "Elited" In the stable

2007.5 Mobile Suites 36 SB3 29,000# Combined SOLD

blt2ski

Kirkland, Wa

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Posted: 05/25/20 10:18am Link  |  Quote  |  Print  |  Notify Moderator

If it goes good, head out!
If not, adjust some more.
I found when I put more wieght on the front than I started with, truck steering was not as good as slightly less. My goal was always out as close to what I lost with trailer attached, back to FA. If I lost 100lbs no wd, I tried to out 60-80 back.

Marty


92 Navistar dump truck, 7.3L 7 sp, 4.33 gears with a Detroit no spin
00 Chev C2500, V5700, 4L80E, 4.10, base truck, no options!
92 Red-e-haul 12K equipment trailer

Check RV.Net Blogs at: blog.rv.net

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