Quote:
Originally Posted by LTb1ow
On a duramax, I can most definitely hit GCWR well before GVWR, or GAWR. RCLB though.
Axle is rated 10,800lb
Light duty truck stuff  |
Notice I said GVWR for a reason. In the world of the big trucks, you might have a single axle with a 20k front axle and 26k rear (this is the biggest set of axles that I know of in a SA truck). If you cross the scales at your 46,000lb GVWR, you can certainly assume the rear is overloaded lol.
Let's take a 2016 2500HD as the example. It has a combined axle weight of 10,600. The GVWR is only 9,300. Your front axle weight is rated at 4,400 but empty the truck already has 3,216lbs on it. This means an extra 1,184lbs brings you to the legal limit on just that axle. For example, a 8' western ultra mount is just shy of 900lbs but I'd imagine because of the weight being in front of the axle, you will transfer a little bit of weight from the rear and probably come close to overloading that axle. On the older 3/4 ton trucks or the dieseld, you can almost count that the 8' plow is overloading the front axles legal capacity.
That truck as a single cab long bed 6.0 weighs 5,717. You could theoretically hold 5,083lbs in the trucks bed but your rear axle can only hold 3,699lbs before it's overloaded. Unless the bulk of that weight is directly behind the cab and transferring weight forward, it would probably overload the rear.
All of this is factoring in the truck's axle weight rating of 10,600 as being the GVWR, which it isn't. The good news is that truck can weigh 21,100 while towing (11,800 capacity) which would make it impossible to overload the rear axle unless you have no concept for how to evenly distribute weight onto a trailer.
I see flatbed trucks and box trucks get put out of commission all the time by the DOT just on my local commutes (on state highways).