Good Sam Club Open Roads Forum: What is this cat scale telling me?
Open Roads Forum Already a member? Login here.   If not, Register Today!  |  Help

Newest  |  Active  |  Popular  |  RVing FAQ Forum Rules  |  Forum Posting Help and Support  |  Contact  

Search:   Advanced Search

Search only in Tow Vehicles

Open Roads Forum  >  Tow Vehicles

 > What is this cat scale telling me?

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 3  
Next
tealboy

orlando, fl

Full Member

Joined: 09/09/2004

View Profile



Posted: 08/26/22 07:10am Link  |  Quote  |  Print  |  Notify Moderator

I tried to provide you with a picture but it was asking for a url and I didn’t know how to do that so here are the figures from the cat scale this morning. I think I understand but the tongue weight is most confusing to me, too heavy if 420 lbs but then there is a difference of 100 in the steer axle that I don’t know how to account for.

With trailer attached to med sized suv

Steer axle 2600
Drive, 2360
Trailer axle 2440
Gross 7400

Suv only with 2 (all cat wt includes 2 occupants at 300lbs total and min cargo)

Steer 2700
Drive 1940
Trailer 0
Gross 4640

Vehicle specs from door label

Gvwr 5665
Front axle rating 3000
Rear axle rating 3105
Payload 1444
Curb wt 4222 lbs

phillyg

SWFL

Senior Member

Joined: 04/24/2002

View Profile



Good Sam RV Club Member

Offline
Posted: 08/26/22 07:22am Link  |  Quote  |  Print  |  Notify Moderator

When hooked up, trailer tongue weight unloads the front axle 100lbs.


--2005 Ford F350 Lariat Crewcab 6.0, 4x4, 3.73 rear
--2016 Montana 3711FL, 40'
--2014 Wildcat 327CK, 38' SOLD

specta

utah

Senior Member

Joined: 06/18/2001

View Profile



Posted: 08/26/22 07:48am Link  |  Quote  |  Print  |  Notify Moderator

My TC takes 100 lbs of the front axle..


Kenny
2011 Chevy 2500 HD 6.0L 4wd
1976 Ford F-250 6.4L 4wd
1995 Lance 945 Onan QG 2500 LP
Regular cab. The best looking trucks.


mkirsch

Rochester, NY

Senior Member

Joined: 04/09/2004

View Profile



Posted: 08/26/22 08:13am Link  |  Quote  |  Print  |  Notify Moderator

4960 (font + rear with trailer hitched) - 4640 = 420

You don't "account for" the 100lbs that comes off the front axle. It's still there, just on the rear axle now.

420 is correct. What makes you think it's "too heavy?" It's 14.6%, right in the wheelhouse.


Putting 10-ply tires on half ton trucks since aught-four.

tealboy

orlando, fl

Full Member

Joined: 09/09/2004

View Profile



Posted: 08/26/22 08:16am Link  |  Quote  |  Print  |  Notify Moderator

So my rig weighs 2760 gross with 11.59% tongue weight at 320lbs or 11.59%, right?

From an unbraked trailer standpoint, I am 1765lbs over the gvwr. The vehicle is rated for 1000lbs unbraked and 3500 braked. Recognizing there is a decent amount of cushion in the unbraked manufacture recommendation, I am probably still too heavy, even though I’ve towed like this several times without issue. It is the emergency braking where I could have an issue I suppose, though the braking does feel pretty good even when a hit them fairly hard.

Agree?

valhalla360

No paticular place.

Senior Member

Joined: 08/19/2009

View Profile



Good Sam RV Club Member


Posted: 08/26/22 08:17am Link  |  Quote  |  Print  |  Notify Moderator

You appear to be within your axle ratings and GVWR.

The hitch weight is 320lb and is removing 100lb from your front axle (hence the 420lb increase in rear axle).

If your curb weight is accurate (iffy), you have 418lb of cargo/people in the SUV.

It sounds OK but....

Without a tow rating provided, I have no idea if you are exceeding your tow rating.

So how does is look and drive?
- Are the headlights pointing to the sky?
- Does the steering feel light?
- What is the hitch weight rating?


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


rjstractor

Maple Valley, WA

Senior Member

Joined: 01/20/2003

View Profile


Offline
Posted: 08/26/22 08:25am Link  |  Quote  |  Print  |  Notify Moderator

tealboy wrote:

So my rig weighs 2760 gross with 11.59% tongue weight at 320lbs or 11.59%, right?

From an unbraked trailer standpoint, I am 1765lbs over the gvwr. The vehicle is rated for 1000lbs unbraked and 3500 braked. Recognizing there is a decent amount of cushion in the unbraked manufacture recommendation, I am probably still too heavy, even though I’ve towed like this several times without issue. It is the emergency braking where I could have an issue I suppose, though the braking does feel pretty good even when a hit them fairly hard.

Agree?


No. Your tongue weight is 420 lbs. You have to account for the 100 lbs transferred from the front to the rear axle.

On the braking issue, your best move would be to add electric brakes to the trailer.

Grit dog

Black Diamond, WA

Senior Member

Joined: 05/06/2013

View Profile


Offline
Posted: 08/26/22 08:33am Link  |  Quote  |  Print  |  Notify Moderator

The cat scale is telling you that you have a nice lightweight little trailer behind your suv and you're well within any "rating" that I can think of save for the brakes/no brakes, which is different than towing weight and how the vehicle is rated for and tows the load.

After a couple different threads now about your setup, what is your concern?
Because there is no issue with it.


2016 Ram 2500, MotorOps.ca EFIlive tuned, 5” turbo back, 6" lift on 37s
2017 Heartland Torque T29 - Sold.
Couple of Arctic Fox TCs - Sold

JRscooby

Indepmo

Senior Member

Joined: 06/10/2019

View Profile


Offline
Posted: 08/26/22 09:30am Link  |  Quote  |  Print  |  Notify Moderator

mkirsch wrote:

4960 (font + rear with trailer hitched) - 4640 = 420

You don't "account for" the 100lbs that comes off the front axle. It's still there, just on the rear axle now.

420 is correct. What makes you think it's "too heavy?" It's 14.6%, right in the wheelhouse.



GW with trailer is 7400 lbs right?

GW without trailer is 4640.


Grade school arithmetic tells me the trailer weighs 2760.
Going back to scale ticket I see only 2440 is riding on the trailer axle.

Little more arithmetic tells me 320 lbs of the weight of the trailer is riding on the ball, or tongue weight.

Another way to figure is add steer and drive on the first weigh, and subtract the gross of the 2nd. Same 320 lbs

I assume that 420 number comes from drive axle weights. You fail to see the increase when pulling the trailer also includes the 100 the front axle is reduced.

tealboy

orlando, fl

Full Member

Joined: 09/09/2004

View Profile



Posted: 08/26/22 09:32am Link  |  Quote  |  Print  |  Notify Moderator

I land in the same place as JRscooby, seems to be 320 on the tongue and 2440 on the axle and 2760 all in TW. Unless someone can prove otherwise, I don’t see how it can be 420 but open to those who are convinced otherwise.

As far as handling, I just drove it in a 5 hour trip and it did great. Everything felt good and the squat seemed to be less than 2”. The vehicle is a Lexus rx350 with tow pkg.

* This post was edited 08/26/22 03:46pm by tealboy *

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 3  
Next

Open Roads Forum  >  Tow Vehicles

 > What is this cat scale telling me?
Search:   Advanced Search

Search only in Tow Vehicles


New posts No new posts
Closed, new posts Closed, no new posts
Moved, new posts Moved, no new posts

Adjust text size:




© 2022 CWI, Inc. © 2022 Good Sam Enterprises, LLC. All Rights Reserved.