2018 Ram 2500

My friends have an 07 or 08 Ram 2500 Cummins that has a "light load" button that allows them to run lowers pressure in their tires with out the computer nagging them. Are the newer ones not like this?

Id keep your 6.0. That 6.4 hemi will be no advantage over the 6.0. I traded my 6.4 hemi in for a cummins.

Coil springs vs leaf springs...

Really no difference in function...they both hold up weight and manage the up/down movement

Leaf springs do serve other duties that coils can NOT...they locate the axle for/aft and left/right. Where as coils can NOT and needs other components to manage that...'links' are a common one

Coil springs 'twist' just like 'torsion' spring bars. The why that their pitch varies on some designs to provide varying weight ratings during it's travel. Lead springs do that with leaf lengths, thicknesses, widths, tapers, etc.

While in college, the company working for part time, won a a contract to install the UPS system for NORAD's center (think War Games, the movie)

The whole center was on a platform mounted on huge coil springs. IIRC, about 8 feet in dia and over one story tall. Each battery cell weighed in around 350 lbs making up 480 Volts DC and the inverter chopped it to AC

Meaning that coils can hold up many, many tons if designed for it

From the factory the coils are rated to carry 500 lbs less than the 3500's leafs. Not really a big deal. They do ride and handle very nicely for a heavy duty truck. The lower payload numbers on the bulk of the 2500s has everything to do with the class 2 max GVWR, except on a few of the base 5.7 trucks equipped with 17" wheels and tires.

GWolfe, there is no light load button anymore. I don't see the TPMS as much of a negative. I run at 65/80 during towing season and 65/65 during the offseason. I guess a quarter inch indicator light on the display bugs some more than it bugs me.

GWolfe wrote:
My friends have an 07 or 08 Ram 2500 Cummins that has a "light load" button that allows them to run lowers pressure in their tires with out the computer nagging them. Are the newer ones not like this?

Never heard of that. Maybe an upfitter or aftermarket option?

IdaD wrote:
From the factory the coils are rated to carry 500 lbs less than the 3500's leafs. Not really a big deal. They do ride and handle very nicely for a heavy duty truck. The lower payload numbers on the bulk of the 2500s has everything to do with the class 2 max GVWR, except on a few of the base 5.7 trucks equipped with 17" wheels and tires.

GWolfe, there is no light load button anymore. I don't see the TPMS as much of a negative. I run at 65/80 during towing season and 65/65 during the offseason. I guess a quarter inch indicator light on the display bugs some more than it bugs me.

Mine chimes and blinks the light now and then, to get your attention until you make it happy. It's more obnoxious than just the light by itself.

GordonThree wrote:

GWolfe wrote:
My friends have an 07 or 08 Ram 2500 Cummins that has a "light load" button that allows them to run lowers pressure in their tires with out the computer nagging them. Are the newer ones not like this?

Never heard of that. Maybe an upfitter or aftermarket option?

No, it was a factory option. Not entirely certain why they got rid of it, but I'm sure it has to do with liability. I'm sure some idiot was running the light load setting while hauling weight and had a tire failure and sued.

Its odd that Ram demands such a high PSI for the rear tires, with such an artificially low payload rating. My truck wants 80 PSI on the rear tires. With factory 18" tires, that's a combined 7280 lbs of load carrying capacity... more than the factory coils are rated to carry and much more than the artificial 10,000 lbs GVWR will allow.

GordonThree wrote:

GWolfe wrote:
My friends have an 07 or 08 Ram 2500 Cummins that has a "light load" button that allows them to run lowers pressure in their tires with out the computer nagging them. Are the newer ones not like this?

Never heard of that. Maybe an upfitter or aftermarket option?

My 12 CTD 2500 has a 'light/heavy' load button. When airing up to tow (70 psi) I have to hit the button for the heavier load. When airing down (rears 45 psi) I hit the button again. Takes a few miles and stop starts to switch over. I know for my year at least the 3500 doesn't have the TPSM option.

Another question about buttons if everyone doesn't mind?

Why can I leave 4wd on (electronic transfer case) or leave traction control off, as in the preference survives a key off

But tow haul is reset every time you turn the key off?

no payload issue with my 2017 2500/6.4, it's over 3100 lbs, the lower payload limits are usually 6.7/Cummins powered due to the extra weight of the diesel.

I'm sure the 6.0 chevy has good power, the 6.4 ram has a lot of juice. good luck.