Forum Discussion
FishOnOne
Feb 03, 2019Nomad
Me Again wrote:Walaby wrote:
Sold my 2014 2500 CTD, bought a brand new 2017 3500 CTD.
It does ride harsher to me (coil spring vs leaf spring), but when I reduced the air pressure in the rear tires from 75 to 50, it softens it up quite a bit. Air up for towing, air down for driving.
Mike
I run my 2015 at around 42-44 lbs empty.
LT275/70R18 and LT285/60R20
PSI RATING
35 2070
40 2270
45 2470
50 2680
55 2840
60 3020
65 3195
70 3360
75 3530
80 3640
Even at 40 lbs inflation you have the capacity of about 1000 lbs more than the empty rear axle.
Running these trucks with ~40psi compared to ~65psi increases tire wear rate.
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