Over loaded pickup

blt2ski wrote:
Scooby,
Can't agree with heavier springs ride higher, "BUT same amount of wieght off front axle" pickups are tailbhigh to start with. As you load, the frame goes to level, to tail down.

You are right. As the rear goes down in relation to front, more weight will be added to rear. Just like raising the tongue of a trailer reduces the tongue weight.

The more tail down you go, more wieght is taken off the front axle. Add 2000 lbs to the back. A 4000 lb spring will square more, taking more wieght off the FA. A 6000 less, 8500 less yet, a 16500 like my MDT, less yet.

But even if the suspension was rigid, adding weight behind the axle will take weight off the front. The same weight centered over RA will not change steering much* This is why loading the lumber to stick out over the cab would level the truck, make it haul the overload much better.

*See a plane vertical thru center of axle. Imagine the sheetrock and 'foam stacked on truck without rear going down, see where that plane is? Now let truck settle like it would in real world. That same vertical plane, compared to first will show a wedge. Any weight in that wedge has moved from in front of to behind the axle.

It's real apparent when I put my equipment trailers 1500 lbs of hitch wieght on different grawr but same WB etc. From 300-400 lbs off a crew cab 172" wb with 6400 lb springs, change out to 8500 lb springs, 200-300, this is a 96 sw . My 05 dw crew cab, 8500 lb springs, also 200-300 lbs. IHC, all of 60-100 lbs.
Spring capacity does effect how much come off the front loading, depending upon where said CG is etc.

Marty

I can remember boss and I moving king pin and 5th wheel trying to get steer axle below 18,000 while keeping drive and tag legal. Finally gave up, called tire man to take 11,400 rated tires of my semi-retired dumptruck for the trip.

Me Again wrote:
Here is what a little over 3.2K+ looks like between the rear axle and tailgate with my 3500 SRW. Pallet of 45 71 lb wall blocks.

You got me beat by about 200 lbs. This was about 3k worth of corn and protein for the deer lease. Although there is about a hundred or so lbs worth of tools in the Ram Boxes and the back seat was loaded up with guns, gear, food, and beer for a weeks trip.

Cummins12V98 wrote:

Me Again wrote:
Here is what a little over 3.2K+ looks like between the rear axle and tailgate with my 3500 SRW. Pallet of 45 71 lb wall blocks.

Show off!!!

Ricksons/tires, air bags...same as DRW...could throw on another 3K no problem!

Jerry

ppine wrote:
Common sense seems to be going out the window in this country. Young people seem to be the most clueless. They have never taken shop class, they can't change a tire.

I remember a conversation with a guy that works for the State Parks Dept. He said he could find people that have a good understanding of natural resources, but they have no mechanical knowledge at all. They tear up the equipment like ATVs, they get stuck all the time. They always need help.

This was happening at my fire department, in my last few years.
Firefighters HAVE to be mechanically inclined but this younger generation often has never heard of "rightly tightly, lefty loosey". They have trouble figuring out how to attach a supply hose to a hydrant or discharge on the engine. And forget anything with its own engine. It took forever, to teach many of them, how to operate anything mechanical.
Of course, many didn't make through the academy or probation thankfully.

Me Again wrote:
Here is what a little over 3.2K+ looks like between the rear axle and tailgate with my 3500 SRW. Pallet of 45 71 lb wall blocks.

Show off!!!

Here is what a little over 3.2K+ looks like between the rear axle and tailgate with my 3500 SRW. Pallet of 45 71 lb wall blocks.

Scooby,
Can't agree with heavier springs ride higher, "BUT same amount of wieght off front axle" pickups are tailbhigh to start with. As you load, the frame goes to level, to tail down. The more tail down you go, more wieght is taken off the front axle. Add 2000 lbs to the back. A 4000 lb spring will square more, taking more wieght off the FA. A 6000 less, 8500 less yet, a 16500 like my MDT, less yet. It's real apparent when I put my equipment trailers 1500 lbs of hitch wieght on different grawr but same WB etc. From 300-400 lbs off a crew cab 172" wb with 6400 lb springs, change out to 8500 lb springs, 200-300, this is a 96 sw . My 05 dw crew cab, 8500 lb springs, also 200-300 lbs. IHC, all of 60-100 lbs.
Spring capacity does effect how much come off the front loading, depending upon where said CG is etc.

Marty

Common sense seems to be going out the window in this country. Young people seem to be the most clueless. They have never taken shop class, they can't change a tire.

I remember a conversation with a guy that works for the State Parks Dept. He said he could find people that have a good understanding of natural resources, but they have no mechanical knowledge at all. They tear up the equipment like ATVs, they get stuck all the time. They always need help.

blt2ski wrote:

Grit dog wrote:
^Except what scooby is neglecting is that you’re not going to shove that load any further forward.
Like saying if my aunt had balls she’d be my uncle. But she can’t grow any so no matter how hard you wish, it ain’t gonna happen.

No you won't push the load forward. BUT by putting those long boards on the top, pushing them forward, that wieght behind the RA will go forward of the RA, so potentially putting more wieght on the FA for better handling. I would not say in this instance it will be great. But it should put a few of the lost lbs from the rear overhang back.

Thank you.

Unfortunately, with the Transit at work, like ALL Ford vans, they added 4' to the rear of a smaller body. 2000 lbs completely behind the RA like these boards, screws up the FA balance. A stronger stiffer rear suspension would help.
One of the reasons I put as short a rear overhang on my dump flatbed. So I did not unduly unload the FA with a load too far in the rear of the bed.

Marty

Stiffer rear suspension would only make the whole thing ride higher. The same amount of weight would be transferred off front.
Most pickup beds are centered over the back axle. But even back before power steering, if somebody wanted to haul weight, more of the bed is in front of back axle.
1 of my little Macks (Tandem drive, 15 ft long material bed) could scale a load of 20 tons, hauling city weights. Contractor had some 18 ft long concrete beams, guessed to weigh about 15 tons. The first 1, I took tailgate off, excavator lift 1 end, loader on the other, and I backed under. That thing sticking out the back could hardly keep it between the ditches. It was bad enough I set a loader on the dump end to push them off the lowboy.

Cummins12V98 wrote:

valhalla360 wrote:
Either staged or photo shopped picture.

Yes, people overload trucks but not buying this picture.

I guarantee you it's real. I used to load my 2500 RAM with that much weight but it only sat the rear down to level.

Here is one of my lighter loads.

Your picture isn't even close to the same situation.