CAT Scale Numbers

[Hazman65]

We took our first long trip down to North Carolina (Jordan Lake) so for some peace of mind I downloaded the weigh my truck app from CAT and hit the scales.

Door Sticker Data:
Front Axle: 3,200 pounds
Rear Axle: 3,700 pounds
Max Vehicle Weight: 6,800 pounds (not sure where I loose 100 pounds but ok)

Unloaded (Just the DW and I and a full tank of diesel):
Front Axle: 3,000 pounds
Rear Axle: 2,720 pounds
Vehicle Weight: 5,720 pounds

Loaded with TT and WDH engaged:
Front Axle: 3,000 pounds (no change??)
Rear Axle: 3,360 pounds
TT: 5,240 pounds


I didn't get the weight without the WDH on but I should have. I guess this gives me 640 pounds of tongue weight. My Grand Cherokee is rated for 7,200 pounds and 720 pounds of tongue weight so it looks like I am within the limits. BTW the "Weigh My Truck" Ap worked great and I have PDF files with the numbers for my records.

[RogerR]

Curious, how much did it cost total?

[Hazman65]

It was $11 each time. I think it's cheaper if you weigh one right after the other but I had to wait a couple of days. $22 wasn't too much.

[RedHorse1]

Originally Posted by Hazman65

It was $11 each time. I think it's cheaper if you weigh one right after the other but I had to wait a couple of days. $22 wasn't too much.

Yes, if you do multiple passes in the same visit the first is $11 and the subsequent passes are $3 each.

[need-a-vacation]

Hazman,

From the weights you do have it looks like the wdh is adjusted for 100% return of the lost weight to the front axle. That's good if that is what is recommended for your Jeep.

Regarding the tw, that is more of a "net" tw since the wd bars were hooked up. If you were to place a scale under the coupler, the tw would be higher (I call this a "gross" weight). This is the actual tw of your trailer, and the weight you need to compare to the Jeep's max hitch rating of 720lbs, not the "net" tw when the wd bars are hooked up. Don't forget to include the wdh weight.

[pmbarber]

Curious on Cat scale numbers as well. The steer axle weight on my truck by itself is 3560lbs. With the trailer connected and the WDH engaged, the steering axle is 3240lbs. It seems that enough weight is not being transferred back to the front, or is this low transfer weight within acceptable range? Using a Equalizer WDH.

With the WDH engaged the front and rear height of the truck is returned to within parameters of what the WDH manufacture recommends.

Cat Scale Numbers:

Truck Only
Steer Axle 3560
Drive Axle 2780

Truck/Trailer WDH Hitch Engaged
Steer Axle 3240
Drive Axle 4080
Trailer Axle 5980

Truck/Trailer WDH Not Engaged
Steer Axle 3040
Drive Axle 4400
Trailer Axle 5840

[need-a-vacation]

PM,

What does your truck owners manual recommend for the wdh adjustment? Some manufactures suggest returning 100% of the lost weight back to the front axle, others suggest less. If not stated then go by the wdh manufactures suggested adjustment.

[Doug]

Originally Posted by pmbarber

Curious on Cat scale numbers as well. The steer axle weight on my truck by itself is 3560lbs. With the trailer connected and the WDH engaged, the steering axle is 3240lbs. It seems that enough weight is not being transferred back to the front, or is this low transfer weight within acceptable range? Using a Equalizer WDH.

With the WDH engaged the front and rear height of the truck is returned to within parameters of what the WDH manufacture recommends.

Cat Scale Numbers:

Truck Only
Steer Axle 3560
Drive Axle 2780

Truck/Trailer WDH Hitch Engaged
Steer Axle 3240
Drive Axle 4080
Trailer Axle 5980

Truck/Trailer WDH Not Engaged
Steer Axle 3040
Drive Axle 4400
Trailer Axle 5840

I would suggest another adjustment. You shaould be able to get within 100-150lbs on the steering axle.
Doug

[pmbarber]

Thanks guys. I think I am going to add one additional washer (Equalizer Hitch tilts head back) and see where that puts everything.

[need-a-vacation]

Originally Posted by pmbarber

Thanks guys. I think I am going to add one additional washer (Equalizer Hitch tilts head back) and see where that puts everything.

You lost 520lbs off the front axle, and returned 200lbs. What is your tv?

From the numbers, you have a tw of 1100lbs which is 15.6%, with a total tt weight is 7040lbs.

[pmbarber]

My tow vehicle is a 2003 Silverado 2500HD