Tire Pressure

[Drtmvr]

On the door for stock tires, it says 60 P. S I front and rear. Doesn't show any difference for load. What is everybody running with 35 A/Ts and maybe a 12000 pound 5er?

 

[Rockcrawlindude]

Depends on the tires max load and max psi and your loaded axle weights

I run around 40 psi and bump up to 50 psi in the rear when needed for 900lb tongue weight.
35s with a 4080 load at 80 psi max

 

[Crusty old shellback]

I run 35 front, 30 rear empty on 35s

 

[Jacob]

60psi for 35s and 5th wheel.
Less when not towing.

 

[AH64ID]

On the door for stock tires, it says 60 P. S I front and rear. Doesn't show any difference for load. What is everybody running with 35 A/Ts and maybe a 12000 pound 5er?

Weigh your setup and use the load and inflation tables to determine the proper pressure for the load.

On my truck and a 12K 5er with 20% pin weight and 35’s I’d likely need 60/65, but weighing your personal setup is best.

StackPath

 

[oppizzippo]

I think this is the link you want for the inflation tables: https://www.toyotires.com/media/pxcjubjs/application_of_load_inflation_tables_20200723.pdf

 

[Rockcrawlindude]

I wouldn’t go below your recommended psi per load. It’s ok to run more depending on your preferences and ride

Here’s my thought process from my smol brain

My Hemi with all my tools and junk and the family but no trailer weighs 8200 or 4600F/3600R on CAT scale

285/75-18 (35”od) max 4080 @80 can support 2500lb at 40psi

2500x2= 5000lb > 4600lb front axle actual

2500x2= 5000lb > 3600lb rear axle actual and I can pick up 1000lb of crap and not need to worry about adding air to the rear tires.

2500x4= 10k which also happens to be GVWR so it gives me warm fuzzies.

My ride is comfortable to me at 40psi on the tires I have.

When I pull my enclosed I bump up to 45 or 50psi for extra load margin and so stiffen up the sidewalls a bit. Trailer is ~900lb tongue weight typically

 

[dieselscout80]

I wouldn’t go below your recommended psi per load. It’s ok to run more depending on your preferences and ride

Here’s my thought process from my smol brain

My Hemi with all my tools and junk and the family but no trailer weighs 8200 or 4600F/3600R on CAT scale

285/75-18 (35”od) max 4080 @80 can support 2500lb at 40psi

2500x2= 5000lb > 4600lb front axle actual

2500x2= 5000lb > 3600lb rear axle actual and I can pick up 1000lb of crap and not need to worry about adding air to the rear tires.

2500x4= 10k which also happens to be GVWR so it gives me warm fuzzies.

My ride is comfortable to me at 40psi on the tires I have.

When I pull my enclosed I bump up to 45 or 50psi for extra load margin and so stiffen up the sidewalls a bit. Trailer is ~900lb tongue weight typically

I don’t have a cap on my bed, so mine is lighter. I just got my bypass cable, Vgate vLinker MC+ Bluetooth OBD2 and I just purchased JScan, so I can adjust TPMS pressures.

Truck empty weight as driven: 7,420lbs

• Front axle 4140 lbs
• Rear 3280 lbs

Max payload: 2,822lbs vs as driven it’s about 2,580lbs

Max trailer: 16,620lbs per Ram but payload/tongue weight will never let me get that high.

 

[Rockcrawlindude]

I don’t have a cap on my bed, so mine is lighter. I just got my bypass cable, Vgate vLinker MC+ Bluetooth OBD2 and I just purchased JScan, so I can adjust TPMS pressures.

Truck empty weight as driven: 7,420lbs

• Front axle 4140 lbs
• Rear 3280 lbs

Max payload: 2,822lbs vs as driven it’s about 2,580lbs

Max trailer: 16,620lbs per Ram but payload/tongue weight will never let me get that high.

topper, winch/bumper, decked etc all adds up quick. I think combined vehicle weight is what you reach quicker than max trailer if you have a bunch of baggage like me.