minimum tire pressure for non towing.
This question is on a 2016 F350 superduty Dually. The tires are LT245/75R17E Goodyear,s.Due to the stiff suspension, I would like to reduce the tire pressure to a safe, but more comfortable ride.when ...
Forum Discussion
KKELLER14K wrote:
ChooChoo...So to clarify this is unloaded cold pressures? Not max loaded cold as branded on the tire itself?
ChooChooMan74 wrote:
You can use a tire inflation chart. Estimate what your truck weights empty, and go from there. For your size tire, this is what it says (note, all charts are an industry standard)
LT245/75R17 Single
35 PSI = 1770 Lbs
40 PSI = 1945 Lbs
45 PSI = 2110 Lbs
50 PSI = 2270 Lbs
55 PSI = 2430 Lbs
60 PSI = 2580 Lbs
65 PSI = 2755 Lbs
70 PSI = 2875 Lbs
75 PSI = 3020 Lbs
80 PSI = 3195 Lbs
LT245/75R17 Dual
35 PSI = 1610 Lbs
40 PSI = 1770 Lbs
45 PSI = 1920 Lbs
50 PSI = 2040 Lbs
55 PSI = 2210 Lbs
60 PSI = 2350 Lbs
65 PSI = 2535 Lbs
70 PSI = 2615 Lbs
75 PSI = 2750 Lbs
80 PSI = 2910 Lbs
The inflation chart above is what each tire will carry at that psi.
So if your empty rear axle weight is 3,500#.
3,500/4=875# carried by each tire, so likely start at 40 psi, and do a tape test or chalk test.
