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What r u guys running psi?

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tienckb

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Did a search and didn’t see much result.

What’s your unloaded tire psi on the transforce 18’s? For DD driving.

I lowered it from 80 psi to 70 rear and 72 front but feel like it can use a little more.

What’s the safe range? Again unloaded.

2020 HO 3500 Mega Cab SRW

Thnx for your input.


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They are 80 psi but that’s maximum payload.

I am experimenting with lower unload pressure for daily driving and smoothing the ride out a little bit until I upgrade the suspension in the near future.


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I'm running about 50psi all the way around unloaded.

Also my 2019 3500 HO shows 60psi front, 80 rear on the door tag.

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Zrojas said:
I'm running about 50psi all the way around unloaded.

Also my 2019 3500 HO shows 60psi front, 80 rear on the door tag.

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Thnx for reply.

U got the 18’s Transforce?


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tienckb said:
Thnx for reply.

U got the 18’s Transforce?


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I did when I got the truck. I am trying the Pirelli Scorpion All Terrain Plus tires now, but I ran the same pressure on the Transforce ATS on my 2019 and the HTs on my 2016.

I have 5300lbs on my front axle and 3500 on the rear unloaded and that should determine the minimum unloaded psi for a given tire. 50 psi puts me pretty much at 5300lbs capacity, 55psi would probably be even better. Running 50psi in the rear allows me to be able to load the rear pretty good before I need to air up while improving the unloaded ride. If I plan to load near payload or tow, I'll air up.

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2020 3500 W 18s Firestone transforce, 65 front / 70 rear. rides great.
 
I run 78 unloaded cold in the front and 65 unloaded cold in the rears. The fronts will run up to around 90 while driving and rears around 70
 
My truck has 20" tires and I ordered it with upgraded AT tires. I run 50PSI all the way around I believe.
 
I have the 18' rims on a 3500 SRW....
I run 60 front, 50-55 rear unloaded.
I take it to 65 front and 80 rear when towing our 5th wheel which has around 2800lbws pin weight.
 
I have the 285/60R20 factory Firestone Transforce and the door jam says 65 front and 80 rear on my 3500 SO. I have to check what I'm actually running (haven't changed from the dealer I have to admit!).
 
I have the 2020 Mega Cab with 285/60/20 factory Transforce and the door jamb says 65 front and 65 rear. That is what I have been running so far but I am about to start lowering the rear to 45 - 50 when not towing.
 
put it on a cat scale unloaded to tell you how much psi you can safely lower it to. My guess is 75 front, 40 rear
 
I run 60 in the front and 65 in the rear. 2500 Megacab 6.7.


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2020 SRW Crew Cab 3500 Cummins HO have 285/60R/20’s Transforce, drivers door jam says 65PSI front (Cold) 80 PSI rear (Cold) but I run a little less In the rear unloaded bout 73-75LBS seems to help the ride just a bit. Back up to 80PSI in the rears when towing my fifth wheel
 
2020 SWR LB CTD. I run 65 front and 50 rear unloaded on stock 18’s and Transforce. Pulling 14k+ 5er I fill up rear to 80psi. I’m switching to Fuel wheels and Toyo 35’s next week and from the data charts I’ve seen on them pressures will stay about the same.
 
I dialed the front to 65 and rear 70 psi and so far so good.

May drop a few more lbs just to see how it does but the ride is definitely better from what the dealer set them at.


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pr3dict said:
Picking up truck now... Will say, I am extremely underwhelmed by the lack of technology lol.

Brand new digital display but cant have android auto show on it... Jeeeeeeez

And even the android auto/carplay screen is like what 7 inches? The widget space on the bottom is practically useless. I know I'm complaining and I can buy something else. Hopefully an update fixes this crap.
Click to expand...
That is android auto and apple at fault for that not RAM

Make your own thread instead of commenting on a 3 year old thread with something completely irrelevant to the thread.
 
Whoops totally posted this to the wrong thread. My bad... I was on this thread because I was looking up tire pressures for the maiden voyage.
 
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