Question Tow Vehicle Tire Pressure - Toyota Tundra Forums : Tundra Solutions Forum

Buck62 · #1 (**permalink**) 07-03-2009, 12:16 AM

Okay, so the first time out with our new 27' TT and I noticed right away that running the tires at the manufacturer suggested levels (29-PSI Front / 32-PSI Rear) is too mushy for my '06 Tundra DC 4X4. I aired up the rear tires to 40PSI and it was much better, but I still get a little "motion-in-the-ocean" when I come to a stop with the trailer behind me.

The maximum PSI on my Firestone Destination AT tires is 44-PSI. So, I just bumped up the rear tires to 42-PSI and the fronts to 36PSI.

Question: Am I okay to run the tires at those levels?

I just did a 200 mile trip last weekend and it did okay with 40-PSI-rear and 29-PSI-front, but as I stated, the front end would bounce a bit when I came to a stop.

I'm leaving for Seattle (from Chicago) tomorrow morning with the trailer in tow, so any good advice would be appreciated.

Thanx.

.

tomhole · #2 (**permalink**) 07-03-2009, 09:33 AM

Run the rears at 44 psi and the fronts at 38 psi (cold pressure, they will go higher after heating up). You'll still get the wiggles and bouncies because of the P rating on the tires. I ran P rated tires on my 2005 DC and then finally put on C rated LT tires. Huge difference while towing. No more wiggles and bouncies.

Buck62 · #3 (**permalink**) 07-03-2009, 10:31 AM

Okay, I'll air 'em up a bit.

I kinda thought that I should be at the max in the rear, but I wasn't sure.

Thanx, Tom.

Tankerhank · #4 (**permalink**) 07-09-2009, 01:13 PM

Reality is like posted ya need a heavier rated tire. I run D rated on my 2000, but a C should be good too, P rated is way to light.

TundraBay · #5 (**permalink**) 07-10-2009, 11:15 PM

I guess it's too late to advise now, but the max pressure is what's on the tire, not what's on the door sticker.

Buck62 · #6 (**permalink**) 07-19-2009, 09:44 PM

Quote:

Originally Posted by TundraBay

I guess it's too late to advise now, but the max pressure is what's on the tire, not what's on the door sticker.

I filled up to 40 PSI (front) and 44 PSI in the rear.

It towed perfectly and the ride was firm and not mushy at all.

Quote:

Originally Posted by Tankerhank

Reality is like posted ya need a heavier rated tire. I run D rated on my 2000, but a C should be good too, P rated is way to light.

Thanks, but it worked out just fine. Considering that my Tundra is my daily driver and spends 99% of the time not towing anything, I think I made the right choice in tires. I'm totally happy with my Firestone Destination AT's.