Tire Pressure Q (1st 3/4 ton diesel)

[mayer7196]

Just purchased a used 2017 Silverado 2500 4wd diesel.

 

The dealer replaced the tires with 275/70-18 Toyo Open Country RT's. Of course they filled the front to 78 (max 80 rating) and 76, while leaving the rear at 62 and 64. Any bump hits pretty damn hard on the road.

 

My question is what is the lowest you can go before you get the TPMS light  and what pressure do you suggest?

 

For the most part I drive without towing, but when I do its about 5,000/6,000 lbs only.

 

I've only had 1/2 ton's and drove around at about 35-40.

 

With a 3/4 ton should I sit around 60?

 

Thanks everyone!

[mayer7196]

Just realized this is the wrong group, please delete.

[jay webb]

typically on these trucks the spec ( you will find this in the driver side door jam) are 60psi in the front and 75 psi in the rear.