Truck tyre pressures

Mossy68 · Post by **Mossy68** » Sun Oct 26, 14 9:45 pm

Just out of interest. What pressures do you run in your D100's / Rams etc ?

40 psi seems about right in mine. Drop to 30 in winter conditions ( with a few bags of sand on the bed !)

Cheers

Pete · Post by **Pete** » Sun Oct 26, 14 9:49 pm

My Durango should be at 33 psi but seems to work better at 40psi....weighs 5000 lbs so that is a consideration........

Mossy68 · Post by **Mossy68** » Sun Oct 26, 14 9:58 pm

Pete wrote:My Durango should be at 33 psi but seems to work better at 40psi....weighs 5000 lbs so that is a consideration........

Thanks Pete. Don't know what the truck weighs , but is the military heavy duty version. Any more than 40psi rattles your teeth. Any less and its a C body ( sorry !)
Tyre wear indicates I'm right , but interested what others run. Seems the yanks run up to 70 psi to get better fuel economy

I have got the military pressures in the door shut. 40 front 70 rear.
Daren't try it as I don't fancy dentures just yet

Pete · Post by **Pete** » Sun Oct 26, 14 10:02 pm

When I bought the Durango it was at 65psi

The tyres are not rated that high..........

I have just put new tyres on the back and it squeals on roundabouts at speed so it may need some adjustment...........

Mossy68 · Post by **Mossy68** » Sun Oct 26, 14 10:05 pm

Pete wrote:When I bought the Durango it was at 65psi

The tyres are not rated that high..........

I have just put new tyres on the back and it squeals on roundabouts at speed so it may need some adjustment...........

What was your choice of tyre Pete. ?

Pete · Post by **Pete** » Sun Oct 26, 14 10:07 pm

I think they were round ones......

Mossy68 · Post by **Mossy68** » Sun Oct 26, 14 10:15 pm

Pete wrote:I think they were round ones......

And here's me trying to be serious for a change !!!!

Well if they're squealing round corners ...................SLOW DOWN !

db · Post by db » Sun Oct 26, 14 11:34 pm

I keep mine around 30, any higher it'd shake itself to bits!

shovelheadrob · Post by **shovelheadrob** » Mon Oct 27, 14 7:38 am

What does it say on the tyre? xxxx lbs/kg at xx psi, should be more than your axle weights, then drop the pressure down accordingly. Remember that the manufacturers recommendations are for the tyres that were fitted from the factory. May not have been radials & probably a different size.

Pete · Post by **Pete** » Mon Oct 27, 14 12:30 pm

Pete wrote:I think they were round ones......

Just looked out of the window and they are Goodyear Wranglers....

Dave-R · Post by **Dave-R** » Mon Oct 27, 14 1:29 pm

Mossy68 wrote:Well if they're squealing round corners ...................SLOW DOWN !

That noise is normally his passengers....

Pete · Post by **Pete** » Mon Oct 27, 14 1:44 pm

Dave wrote:
Mossy68 wrote:Well if they're squealing round corners ...................SLOW DOWN !
That noise is normally his passengers....

We had a deadline, and I have grown up a bit since then

Mossy68 · Post by **Mossy68** » Mon Oct 27, 14 6:02 pm

Pete wrote:
Dave wrote:
Mossy68 wrote:Well if they're squealing round corners ...................SLOW DOWN !
That noise is normally his passengers....
We had a deadline, and I have grown up a bit since then

Says the man building an Altered !!!

Pete · Post by **Pete** » Mon Oct 27, 14 6:13 pm

Never underestimate a Supercharged Mercedes and a man late for his dinner - it's a long story.............

bratfink · Post by **bratfink** » Mon Oct 27, 14 6:38 pm

I run mine at 60 front and 65 rear.

Mine are E load rated and are supposed to be run at high pressure. Not sure on the 1500's since mine is a 2500.