Tires: Treadwright

[rancherman]

shared weight by both axles? was the approach to the scale perfectly level, or was the actual weigh pad elevated somewhat?

[Rogan]

Yeah I dunno.. As far approach, scales are elevated but approach/departure was level with the scales. Sent from my SPH-L710 using Tapatalk 2

[dripley]

Scaled it this afternoon.. 1/8 tank fuel, bed empty Fr: 4140 Rr: 2840 Truck: 7220 Hows the ends not add up to the total? 6980 doesn't equal 7220.. Sent from my SPH-L710 using Tapatalk 2

That is rather strange.

[cetanefreek]

I know if the scale where I used to work wasn't calibrated quite right, then weight out on one end or the other would register differently than if that weight was in the middle.

[rancherman]

#240 difference... you sure you didn't hop out of the truck while it was getting weighed the first time? I'm guessing you had a full length truck pad, make sure you have the weighed axle on as far the pad without having the other axle onboard. Then, if you can, don't drive ahead to weigh the rear axle from other end of pad. (back up, turn around and back onto the scale to weigh the rear axle.) Your rear axle will be in same spot as front was.

[Rogan]

I'm fat, but I ain't that fat! LOL

[Mopar1973Man]

Scaled it this afternoon.. 1/8 tank fuel, bed empty Fr: 4140 Rr: 2840 Truck: 7220 Hows the ends not add up to the total? 6980 doesn't equal 7220..

Very close to my weights. Front: 4440 Rear: 2860 Total: 7300

[diesel4life]

It's odd a 3/4 ton weighs less than a 1 ton dually

[Rogan]

Yeah, I'm not putting a lot of faith in the scales I used...

[sngsht]

Scaled it this afternoon.. 1/8 tank fuel, bed empty Fr: 4140 Rr: 2840 Truck: 7220 Hows the ends not add up to the total? 6980 doesn't equal 7220.. Sent from my SPH-L710 using Tapatalk 2

They must use that new math..

[dripley]

With all this weighing and pressuring, are the tires doing any better?

[Rogan]

Lol. Well I haven't come up with a definite pressure to set the at yet. Sent from my SPH-L710 using Tapatalk 2

[Rogan]

So I dropped pressure in the rears to 45psi. It seems to tow much more stable, and the contact patch is at about 95% contact towing. Sent from my SPH-L710 using Tapatalk 2

[diesel4life]

Just make sure theyre not building excessive heat at the lower pressures if your running loaded like that.Glad theyre working out for you, I'll be in the market for a set before winter and might take a closer look at a set of all seasons.

[cetanefreek]

I used to run 22psi in my duals when empty, around 45 with the goosneck on (rear axle at around 6000 lbs). did that for 45,000 miles and the tires looked about 40-50% tread when I sold the pickup.

[Rogan]

Just make sure theyre not building excessive heat at the lower pressures if your running loaded like that. Glad theyre working out for you, I'll be in the market for a set before winter and might take a closer look at a set of all seasons.

JR, I'm monitoring them with my IR temp gun. they're still a tad warmer on the center than the edges, but by about 10*F. I'm keeping an eye on them, for sure. with a rear weight (empty of under 3000lb, I can't see where 30-45psi would be a problem. Even my trailer loaded, I'm still at maybe 4000lb rear truck axle weight, at most. We'll see

[Rogan]

Heres a pic of the light feathering I was seeing at 65psi. [ATTACH]5708[/ATTACH][ATTACH]5709[/ATTACH]Sent from my SPH-L710 using Tapatalk 2

[mr.mindless]

I still must strenuously disagree with this method of tire pressure calculation. The logic is sound, but you cannot run a tire flat safely! By this logic, an empty trailer should have tires around 7-10psi. No!Many commercial tires will have a load table published suggesting inflation pressures for given loads. Follow those! If your tire doesn't have one published, look for similar tires and use them as a guideline. the very most critical thing in a dual tire setup is that the sidewalls do not contact each other. That'll build heat very quickly and lead to failure. Running such low pressures in your duals I hope they have a large amoun of clearance between the sidewalls to account for flex when you hit bumps or for the quick load you take while underinflated. Tapatalking in traffic

[Rogan]

Just make sure theyre not building excessive heat at the lower pressures if your running loaded like that. Glad theyre working out for you, I'll be in the market for a set before winter and might take a closer look at a set of all seasons.

This tire saga is starting to turn into a parallel of my trans saga

[diesel4life]

How are they holding up Rick? I have never been a dually owner and havent paid much attention to them but what Mindless is saying seems logical. Most any tire will have the weight ratings stamped on the casing for a single wheel and a dual and therecommended pressure doesnt change.