265/75/17 Duratrac Tire Pressure for winter conditions?

Hey Guys,

Picked up a 2013 trd double cab v6!!! Traded in my 2007 double cab (base model) for a wicked deal! First thing I had installed was 265/70/17 Wrangler Duratrac tires.

This is my first time running All-Terrain tires here in Alberta Canada. I can't seem to get the tire pressure correct for winter grip with these tires. I have them currently set to 38 psi which I believe is too high. I slip and slide alot in awd mode at this setting.

Any recommendations for pressure levels for icy, snowy, cold winter conditions?

 

38 psi is too high. I recommend dropping it down to 32 psi and see how they do, and maybe lower the psi more if needed.

 

OP
Do you have C or E rated duratracs?
I have C rated. During the summer months, I run 38 to 40 lbs and during the winter months 28 to 32 lbs. Currently, I have 42 in the front and 48 in the rear but I have a 1200 lbs in the bed.

 

Yup, this is the first question that needs to be answered, Es will ride better with higher pressure and Cs with lower.

 

Good point about the load rating. Mine were C, I ran 32 psi regularly, dropped it down to sbout 26 for snow.

 

Hey!!

Thanks for all the replies! I'm running load rating C tires.

I went from 38psi to 32psi last night. There was improvement, but still could use some tweaking. I'm thinking to try 30psi all around to see how that affects handling.

 

32 psi is probably your optimal normal driving pressure, but do a chalk test when the weather clears up. Like you said, drop it down a couple psi at a time until you are happy.

Do you keep weight in the bed? I have a prerunner so I put about 150 lbs. in the bed for snow driving and it seems to help with traction.

 

No offense to anyone else in here, but IMO they are all wrong and never asked the correct questions.

First off no one ever asked what your trucks equipped with. I ran this exact same tire and my chalk test as well as 30,000 miles say my pressure (38 in rear/40 in front) was spot on. My truck is armored so it's heavy and my "perfect" pressure will be different then yours.

Your best bet is to chalk test them after reading all the charts for the weight of your truck and getting it close. http://www.4wheelparts.com/tire-wheel-package-guide/tire-pressure-checker.aspx

 

A chalk test is a method but its not all that perfect. There are to many variables and it really matters what you are trying to accomplish by changing your tire pressure. For example: comfort, mileage, wear, traction and so on.
Please don't ever use the door jam tag recommend tire pressure like some people refer to. It could be very dangerous.

 

how about for summer conditions for best wear?