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Makes sense for the added payloadCummins HO 6.7 weighs: 1070 lbs.
AISIN Transmission weighs: 400 lbs.
That's what the interwebs say...
For comparison the Hemi 6.4L weighs in at about 582 lbs and the ZF 8H75 transmission weighs about 200 lbs.
Check out an inflation chart, even with the extra weight, 80 psi empty is way over kill. It will even far exceed the max GVW a 3500 is rated for. Two front tires at 80 psi would be rated 6,600 pounds on an E rated tires. I have never seen a pickup with the front that heavy, even at max load.With 3/4 of a ton plus frame, suspension, components, etc., that's why I run my front tires at 80 psi, cold
What can I say, some guys like riding a Pogo stick.My tire wear has been perfect, so I don't really worry about it too much. I'm running Michelins with 27k miles on them and they still look like new. I guess it it's not broke, don't fix it.
Now, if I run my fronts less than 75lbs they wear on the outer edge.I used alphaobd and reset mine. I run 50 to 55 front 40 to 45 back on a 2500 gaser. Rides WAY better, handles better and stops better, especially on ice and packed snow. Tires wear more evenly as well
That's most likely because you have too much toe in. Lookup thuren alignment specs.Now, if I run my fronts less than 75lbs they wear on the outer edge.
TBH... I've never noticed it.What can I say, some guys like riding a Pogo stick.
Jeeps do it because the tires are generally oversized and a Wrangler weighs nothing. I have to run my 35's at 24-26 psi on my JKR. If you're running OEM sized radials on a 3/4 or 1 ton truck a chalk test is useless. I get full tread wear at 70 PSI or 50 PSI on the rears, and 60 or 50 on the front. Quality of the ride is far different between the pressures when unloaded.Charts are general guidlines. It doesn’t mean squat. You need to do a chalk test to see how your tread pattern meets the road surface.
Here’s how to do the chalk test:
Load your vehicle as you plan to drive it. Adjust to your desired tire pressure. Drive around until tires are at operating temp. Find a smooth asphalt surface for test. Rub chalk across tire tread until your tread is covered with chalk drive forward just enough for one revolution. Check to see how chalk has changed. If chalk only removed on outside of tread, your under inflated, only the center over inflated.
Jeepers do this when installing bigger tires since there is no “chart” for your specific setup.
Try it, you will be surprised at the results.
I drive a box stock truck with just me in it and maybe 20-30 lbs of gear. It's pretty easy to do math here. I did stay at a holiday inn express once or twice. At 50 PSI my tires are capable of holding 2680 lbs each. My truck weighs 6953 lbs empty. Are you following?Is it 70 or 50 in the rear? You just destroyed your own logic.
I tow a 45’ fifth wheel with my dually. Being a retired truck driver I actually ran my rig over the scales 33,000lbs. I know my axel weights, do you?
And yes I am running g rated tires because the stock tires are inadequate.
How many of us drive a box stock truck with zero load?
Ya gotta know yer vehicle!!
Did you replace your rims when you upped to G rated tires? Your stock rims are only rated for 85 psi. G rated tires fully inflated are rated for 110 psi so if you kept the stock rims you've reduced the load capacity of the G rated tires just on the rims air pressure rating unless you're running pressures higher than the rim's rating. You didn't gain as much as you may think (unless you did upgrade the wheels).Is it 70 or 50 in the rear? You just destroyed your own logic.
I tow a 45’ fifth wheel with my dually. Being a retired truck driver I actually ran my rig over the scales 33,000lbs. I know my axel weights, do you?
And yes I am running g rated tires because the stock tires are inadequate.
How many of us drive a box stock truck with zero load?
Ya gotta know yer vehicle!!