392DevilDog
Senior Member
- Joined
- Aug 25, 2019
- Posts
- 1,940
- Reaction score
- 2,903
- Location
- Glasgow, Pennsylvania
- Ram Year
- 2015
- Engine
- 392 Hemi
Yes, I fully understandsrand the SAE document.SAE J2807 is a testing standard, all the manufacturers have to adhere to the same parameters to make the ratings comparable. There is break downs how how and where all of the weights applied within the test vehicle. They even specify that the vehicle must include options that have a 33% penetration of vehicles sold(options equiped on 33% of the number of vehicles built/sold).
The big numbers to adhere to are the GAWRs and (secondly) GVWR. Just because your under those numbers doesn't mean your safe, there are some people that I don't trust with 500 lbs in the bed let alone towing anything.
Same goes for the think that if the trailer/load is on the edge for a 1500 that if you move up to a 2500 the same care and due diligence doesn't need to be adhered to. I would much rather drive along side someone that's pushing a 1500 slightly over the max who knows what their towing than some who slaps a trailer on the back of a 2500 and thinks "this truck will tow this no problem". There is a lot of misinformed people that think a WDH doesn't apply to 2500/3500s.
Which is why i posed those questions.
They state those numbers. They are obviously not used in the determination on his truck.
Yes. The numbers to know are GVWR and GCWR.
Which he knew. 7100 and 17000. Also, the axle ratings allow you a little bit of cheat room. A little bit.
The best thing to do is use a CAT scale...but very, very few dealerships are going to allow you to team up with an RV dealership and take your prospective truck and trailer to the scale.
This would be the best case scenario.
So you are left to the ratings.
Which are not able to be reproduced in the real world...unless you weigh 150lbs and only have 150lbs of cargo on a trailer setup exactly with a 10% tongue rate.
And in the case of @2019RamInSC to use his found number...nothing can be in the truck.
Hence the issue with using numbers vs a scale.