I finally weighed my truck and fiver.

[Radshooter]

Well, we finally finished the contract in Yuma. We told ourselves our next contract would be somewhere much cooler. Guess where we wound up... . Phoenix I guess you could say out of the fire into the frying pan. Anyway, on our way out of Yuma, I pulled over some CAT scales. Thanks for all you guys that pointed me to them. Here are the numbers:



A. Front axle, no trailer... ... 5000

B. Drive axle, no trailer... ... 3760

C. Total wt. , no trailer... ... . 8760



These weights were obtained with a full fuel tank and I also have a large tool box and fifth-wheel hitch mounted in the truck. I pulled in again the next morning on our way out of town with the trailer. Here is what the scale read:



D. Steer axle, with trailer..... 4900

E. Drive axle with trailer... ... . 6820

F. Trailer axle... ... ... ... ... ... ... 13620

G. Total wt. with trailer... ... 25340



If I take G-C, that gives a trailer wt. of 16580.



Is there a way to calculate pin wt. based on these numbers? Can I use the formula E-B (loaded drive axle minus empty drive axle) for a pin wt. of 3060? This seems a little high, but is a big trailer. There is a picture of the truck and trailer in my reader's rig section. If this is not the correct formula for pin weight, can someone set me straight?



By the way, Arizona has some of the worst drivers I have ever been around. I have been driving over 35 years, and been in 4 wrecks. None of them my fault, and none serious... just fender benders. However, 2 of the 4 have been here in AZ in the last 3 months :--) :{



Anyway, I just wanted to share these weights with you guys and see what you thought. Thanks for info about the pin weight.



Take care and drive safely... ... . Steve

 

[GFrance]

Looks right to me on the pin weight. I don't remember what the dually's are rated for, but it looks like your right up there on gvwr. Nice looking combo by the way. What is it a 36' tripple slide?

 

[Radshooter]

Thanks GFrance. It is listed as a 36 footer, but if you stretch out the tape measure, it is closer to 38'. Triple axle, triple slide, 2 ACs, seperate washer/dryer, dishwasher, all the comforts of home. In fact, it is our home. We are full-timers. I know I am pushing the weight limits, but the dually is tough enough to get into some of the parking lots, much less an FL60. I did a lot of research on TDR (thanks for everything guys) and have been happy very with the truck. It has no problems at all hauling the trailer.



Steve

 

[GerryDrake]

Pin weight

I would suggest your pin weight is 2960... . D + E - C



Loading the trailer on the rear axle has transferred 100 of the truck's weight off the front axle to the truck's rear axle due to a shift in the CG with the drop of the rear end, so the rear axle is carrying 3060 more, but only 2960 of that is from the trailer, the other 100 (truck weight) due to the changed CG of the truck. I suspect if you were to have weighed the trailer alone (either axles and front landing gear) it would likely show the 16580...



I think I've got that right. .



Gerry

 

[DPelletier]

I believe Gerry is right. And FWIW the dually is rated at 12,000 lbs GVWR, so at 11,720 he's 280 lbs to the good. The GCWR is only 21,000 but the same truck with 4. 10's is rated at 23,000 so the 21,000 is only for power purposes. Nonetheless a little over on the GCWR, but I've always been more concerned with the GVWR as the trailer brakes mitigate the GCWR somewhat. Sounds like its working fine.



Cheers

Dave

 

[Radshooter]

Thanks Gerry and Dave for the info. You guys are making me feel better about this truck all the time.