deezulsmoke

Just wondering what everybody usually runs in the front and back on there duallys when unloaded ??

XLR8R

There was a recent thread on this topic...

deezulsmoke

Can you point me to the thread ??? I did a search and cannot find anything specific to tire pressure.

thanks

XLR8R

I couldn't find it either by thread title in my subscribed lists... I'm pretty sure it was in the RV/Towing forum a couple of weeks ago, probably a hijack from carrying capacitys. Users were chiming in with front & rear pressures, loaded & unloaded, usually specifying their tires and driving habits.

Best ride tire pressure is different from best wear tire pressure or highest capacity tire pressure... what are you trying to do?

bocuso

I run 65 in front and 45 in rear.

v8440

I have owned 2 duallys (a 2nd and a 3rd gen), a SRW 3500 3rd gen, 2 2500 3rd gens, and a 2500 2nd gen. There is one thing I've found in common on all of them: RUN 80 PSI IN THE FRONT TIRES. I do not care if it's a daily driver or a hauler, loaded or unloaded. The cummins is heavy enough to hurt your mileage a lot if the pressure is much below the max recommended.

Now, on the rear tires the story is different. If you have an empty or lightly-loaded dually, you can't run near that much pressure in the back tires unless you don't mind the center of the tread wearing out long before the rest. I run about 45 psi in the rear tires on my dually. To need 80 psi back there, you would really have to be heavily loaded in the back. For SRW trucks, 55 or 60 is probably about right for lightly loaded conditions. Heavily loaded, take it on up to 80. If you run 80 in back lightly loaded, you'll shake your teeth out.

These pressures are what I've found to give good mileage, reasonable ride, and won't prematurely wear your tires out.

deezulsmoke

V8440, Thanks, Thats exactly what I was looking for.

Duallydog

I've been running mine lately with 70 in the front an 65 in the back. The main reason I went with more in the front is my left front tire losses 7 psi in 8 days.

wild4stangs

I run 75 in the front and 70 rear loaded or unloaded. Wear is good.

TonyB

Check your valve stem....There have been reports on the DTR about losing pressure through the valve stem...some catastrophic (at fwy speeds) and others slow & subtle, like yours.

HTH

Tony

Duallydog

I'll try that. Getting tired of filling that sucker on a regular basis, and now I don't have an air compressor. I'll probably have to bum some air off of Texaspower19.

Red Raider

I run 80 in the rear duallies and 75 in the front when hauling, which is most of my run time. I put on some heavy loads - my empty trailer weighs 9,000#.

truckjunkie

That's about what I run too - I'm usually 70-75 in the front and 70 in the back. Wear is good also.

CrazyCooter

Air Pressure Topic

XLR8R

Thanks CrazyCooter - that's the thread I tried to find for deezulsmoke!