Tire pressures...

[roperteacher]

Hey there! I am trying to figure out whats best for my 07 with regards to tire pressure. I know what the door says, but I tow on weekends and daily driver during the week. Right now I have them at 70 in the back and 65 in the front. I "Thought" I had a slight vibration, but it's just that I am feeling every nook and cranny in the road. Drove nice flat hwy and it was completely smooth. What tire pressures do you suggest for my driving habits! Thanks!Oo.

 

[Grizzly]

Don't exceed the max pressure stamped on the tires, but adjust the pressure according to the chart in the Owners Guide for the weight you are hauling. 65 psi on the front tires sounds right, but 70 psi on the rear sounds high. All depends on your axle weight.

 

[roperteacher]

Tires say Max 80 PSI. Door of the truck says

UNLOADED: 60 Front 45 Rear

LOADED 60 Front 70 Rear



I think I am going to back the fronts to 60 since that is where they are supposed to stay and reduce the rears to 65. . Is this a happy medium???



I tow a good sized LQ horse trailer on weekends...

 

[roperteacher]

Why are some putting LESS in the rear tires for towing than the fronts???? You would think it was the other way around??? THanks!

 

[JFaughn]

Anything that come for the dealer [ chart on door ect ] is for stock , tires , if have put anything on after that go by the tires only .
The only thing you need to worry about , is under inflated , creating too much heat in the tires , that can cause blow outs , maybe about 10-15 lbs low .

 

[BHolm]

You need to know the wieght the rear tires are carrying with the trailer on. Find a scale, get it wieghed all loaded up. You will probably find that a good sized LQ horse trailer has a lot of wieght on the rear axle. I personally would run 80 psi in back when loaded and 50 empty, 60-65 in front should work either way.



There is no one magic number. Obviously it will ride harder with more pressure, but it will carry more wieght. Too much pressure in back when empty can also affect braking and handling. I adjust the rears to match the load because I drive all curving mountain roads, sometimes pretty quickly, and the last thing I want is the rear end stepping out because the rear tire pressure was too high.

 

[jgillott]

I've found 60 front/50 rear works for me empty. I've only towed heavy a few times so far... with 60/70 and it seemed OK.

 

[JPLB22]

Unloaded = 72 front and about 56 rear



Loaded = depending on towing weight, 72 front and around 70 rear



This has worked very well for me on three different trucks, '01, '02 and the '03. With rotation every 6k I seem to get very even tire wear and the stock tires will usually go around 60,000.



Jeff



P. S. I guess my unloaded pressures could create an understear situation, but I haven't had any issues yet.

 

[roperteacher]

Can someone explain why you would want MORE pressure in the front than the back?

 

[Jeepstang]

I run whatever my sticker on the truck reads which I thinkis 45 front and 45 rear for light loads

the ride is great!

I have towed up to 10k without any issues



ropertteacher I think the answer to your question is the heavy diesel engine is in the front and when you tow heavy loads you can raise the pressure

 

[betterthanstock]

Put the fronts at label pressure (60 stock, 45-50 oversize tires).

Then match the bulge in tires on rear, so they look just like the fronts.



Of course don't go over sidewall rated pressure.