New-To-Me Truck with aftermarket wheels/shocks/tires

[Justin Buckley]

Hello! New owner of a 2019 Ram 1500, and have some questions about wheels/tires/suspension...

The previous owner (bought from a Dealer) installed Fox 2.0 Performance Series shocks both front and rear (I'm assuming the springs are stock?).
It's running Yokohama Geolandar X-AT LT285/75R18 on Helo 18" wheels. The tire pressure was set at about 48psi front and rear.

Is there a rule of thumb or way to calculate the best air pressure for light/zero load when driving around town? The door panel sticker calls for 36psi cold, but obviously that's with OEM wheels/tires.
And I'm assuming if I'm towing I'd want to increase the pressure for the additional load?

Trucks in general are new to me, so any advice is appreciated. Thanks!

 

[jimothy]

Looks good! I’ve got those same tires in 295/70R18.

48 psi sounds high to me. You can search the forum (and elsewhere) for chalk test as a way of dialing in tire pressure.

 

[HSKR R/T]

Hello! New owner of a 2019 Ram 1500, and have some questions about wheels/tires/suspension...

The previous owner (bought from a Dealer) installed Fox 2.0 Performance Series shocks both front and rear (I'm assuming the springs are stock?).
It's running Yokohama Geolandar X-AT LT285/75R18 on Helo 18" wheels. The tire pressure was set at about 48psi front and rear.

Is there a rule of thumb or way to calculate the best air pressure for light/zero load when driving around town? The door panel sticker calls for 36psi cold, but obviously that's with OEM wheels/tires.
And I'm assuming if I'm towing I'd want to increase the pressure for the additional load?

Trucks in general are new to me, so any advice is appreciated. Thanks!

Fox shocks are probably the Mopar kit. As for tire pressure, as mentioned, the chalk test is a good way.