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Old 10-22-2018, 06:19 AM   #31
KHBama
Senior Member
 
Join Date: Nov 2017
Location: Pike Road
Posts: 130
Quote:
Originally Posted by CWSWine View Post
The person that told you to go by axle rates is behind times and that is no longer valid way of determining payload. This has been reprinted in most of the major trucking newsletters over the last few months. I quote:

By Bob Raybuck
Director of Technical Services
NTEA
"Often, GVWR and gross vehicle weight (GVW) are thought to be the same, but they are not. A truck’s GVWR is the maximum weight rating established by the chassis manufacturer. GVW is the total weight of the truck and payload at a point in time.

There’s a common misconception that a truck’s GVWR is determined by adding gross axle weight ratings (GAWRs) together for all axles. Although this was a common way of calculating GVWR many years ago, it’s no longer an accurate method. The chassis manufacturer task of establishing a vehicle GVWR is much more difficult today due to advancement of safety system standards and how vehicles meet these requirements. This is why many trucks have a GVWR much lower than the combined axle ratings. It is not uncommon for a truck with a GVWR of 19,500 pounds to have a front axle rated at 7,500 pounds and a rear axle rated at 14,700 pounds. Safety standards that apply to braking, vehicle stability, and chassis manufacturer internal standards for durability, dynamic stability and handling can restrict GVWR even though the sum of the axle ratings exceeds 22,000 pounds. In this instance, the OEM set the GVWR at 19,500 pounds based on test results and vehicle dynamic performance to ensure a safe, reliable truck.”

By Bob Raybuck
Director of Technical Services
NTEA

https://drivewyze.com/blog/trucking-...g-work-trucks/

https://www.ntea.com/NTEA/Member_ben...rk_trucks.aspx


https://www.usspecial.com/2018/01/page/13/

http://procontractorrentals.com/page...iderations.php

Don't think anyone is determining payload based on axle ratings, but using axle ratings is better than using a marketing tool rating used by some, IMO. Until someone proves me wrong, again my Ram 2500 with a 5.7L has 1,000lbs less payload than a Ram 2500 6.4L despite only a 50ish lb different in engine. Magically the truck advertised as a more heavy duty truck(6.4L), gets the GVWR of 10,000lbs vs 9,000lbs for the 5.7L. I realize that 6.4L is stronger and can technically "pull" more, but we are talking strictly payload here.
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