switched to LT load E tires, curious as what pressures you guys run them at.

[Pale Rider]

Recently I installed a set of Vision aftermarket wheels with Cooper Discoverer ATP II on my 2019 LT Silverado. 17 x 8.5 wheel, LT265/70/17 Tire. 

Discount Tire Direct has these recommended at 43 psi cold. seems a bit light for an E load tire. I know the tire will ride harsher bc of its carrying capacity design. I do tow occasionally and more in the summer months. My thoughts are about working the sidewalls to much with to little air if this is not correct. I do notice they increase to 47-48 once running for my 1.5 hour commute to work...

any thought are appreciated!.

[Black02Silverado]

I ran mine at 40psi unless I was towing/hauling heavy then moved them up to 60psi.  Just keep an eye on the wear.  No worries running at 40psi for sidewall issues.  Mine lasted 75K miles.

[ShortMag]

Ridge Grapplers at 38-40psi. 50k miles and still going strong 

[kickass audio]

I don't have the same edition silverado as you but my 14 I keep the BFG All-terrains inflated to 45psi cold and after thruway driving it goes up to 49-50psi in the front and stays at 47-48 psi in the rear. My tires are worn perfectly even on the front and rear and across the whole tire. I do rotate my tires from side to side and front to back twice a year though but they still are totally flat for wear.

[swathdiver]

5 hours ago, Pale Rider said:

Recently I installed a set of Vision aftermarket wheels with Cooper Discoverer ATP II on my 2019 LT Silverado. 17 x 8.5 wheel, LT265/70/17 Tire. 

Discount Tire Direct has these recommended at 43 psi cold. seems a bit light for an E load tire. I know the tire will ride harsher bc of its carrying capacity design. I do tow occasionally and more in the summer months. My thoughts are about working the sidewalls to much with to little air if this is not correct. I do notice they increase to 47-48 once running for my 1.5 hour commute to work...

any thought are appreciated!.

You need enough air to exceed your axle capacities.  43 psi puts a pair of tires at 4366 pounds.  I initially ran mine at 49 psi and after 40K miles, they were wore down 1/32 more in the center.  42 was perfect for mine.  

[eppieguy]

I'm at 40 rear 42 front, I've got nothing in the bed and not towing anything, any pressure less I was getting a shake, had them balanced 4 times, never a change, once I went up over 40 PSI it ride smooth as can be & perfect wear for the almost 20k I've put on them so far. very happy.

[redwngr]

https://tirepressure.com/lt265-70r17-tire-pressure

 

LT265/70R17 Tire Pressure Chart

Corresponding tire load capacity at specified tire inflation pressures for LT265/70R17 tires.

 

Tire Size	35 psi	40 psi	45 psi	50 psi	55 psi	60 psi	65 psi	70 psi	75 psi	80 psi	95 psi
LT265/70R17 Single Tire	1890 lbs	2075 lbs	2255 lbs	2470 lbs (C) 112	2595 lbs	2760 lbs	2910 lbs (D) 118	3005 lbs	3100 lbs	3195 lbs (E) 121
LT265/70R17 Dual Tires	1720 lbs	1890 lbs	2050 lbs	2270 lbs (C) 109	2360 lbs	2510 lbs	2680 lbs (D) 115	2735 lbs	2820 lbs	2910 lbs (E) 118

LT265/70R17 is an LT-Metric tire available in 3 load ranges. LT265/70R17 tires can be used in dual rear wheel application.

Use our tire pressure calculator to calculate proper tire inflation for replacement tires to match the original equipment tire load capacity on your vehicle.

LT265/70R17/C 112/109 tire with load range C and load index of 112 has a maximum single tire load capacity of 2470 lbs @ 50 psi, capable of supporting up to 2470 pounds or 1120 kilograms, while dual tire application with load index of 109 has a maximum dual tire load capacity of 2270 lbs @ 50 psi, capable of supporting up to 2270 pounds or 1030 kilograms when inflated to its maximum air pressure of 50 pounds per square inch (psi) or 345 kilopascals (kPa).

LT265/70R17/D 118/115 tire with load range D and load index of 118 has a maximum single tire load capacity of 2910 lbs @ 65 psi, capable of supporting up to 2910 pounds or 1320 kilograms, while dual tire application with load index of 115 has a maximum dual tire load capacity of 2680 lbs @ 65 psi, capable of supporting up to 2680 pounds or 1216 kilograms when inflated to its maximum air pressure of 65 pounds per square inch (psi) or 448 kilopascals (kPa).

LT265/70R17/E 121/118 tire with load range E and load index of 121 has a maximum single tire load capacity of 3195 lbs @ 80 psi, capable of supporting up to 3195 pounds or 1449 kilograms, while dual tire application with load index of 118 has a maximum dual tire load capacity of 2910 lbs @ 80 psi, capable of supporting up to 2910 pounds or 1320 kilograms when inflated to its maximum air pressure of 80 pounds per square inch (psi) or 552 kilopascals (kPa).

All listed data and/or calculations are for informational purposes only. TirePressure.com does not warrant or make any representations regarding the accuracy of or the results of the use of this information. Always refer to vehicle owner's manual for recommended tire pressure settings. Never overinflate or overload a tire beyond its maximum capabilities listed on sidewall.

 

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[Pale Rider]

Thank you all for sharing your set up. I`ve up`d the psi to 44 with ambient temps @ 43 degrees. Yesterday the fronts got up to 50-51, and the rears 47-48. Today was much colder and the psi lower. But cold pressure at 44 is very smooth, handles very well, except for the mushy front stock shocks. I`ll keep an eye on the wear and adjust from there.

Thank you all!!! 

[black00ta]

Not to overcomplicate this, But as long as you do not run below 41ish PSI you will not drop below factory weight carrying ability at any point. if you decide to go up, then that is your choice. I found my sweet spot at about 45psi.

[Pale Rider]

On 12/9/2021 at 9:53 PM, black00ta said:

Not to overcomplicate this, But as long as you do not run below 41ish PSI you will not drop below factory weight carrying ability at any point. if you decide to go up, then that is your choice. I found my sweet spot at about 45psi.

what are your pressures once the tires are heated up for a while?

[AD80]

Don’t know if it’s true or not, but I once heard that  good rule of thumb is if your cold pressure jumps over 10% once their warm while driving, then you need to add more. So if you have 40psi cold then while driving it gets up to 45+ then you might try adding a little more. Like I said, don’t know how accurate this is, it’s just what I’ve read somewhere on some forum. 

[black00ta]

On Nitrogen I'd see about 2psi swing cold to hot.

Regular air will be slightly higher fluctuation like 4ish psi, but that is normal operation.