I have basically the same truck. You are aggressive when taking off from a start. I ease into starting and have perfect wear across all tires within 1/32".
I run 45psi solo and 60 towing with 4.5-5K pin. I always run 80 fonts. Michelin MS2's 35K and 1/3 worn.
2015 RAM LongHorn 3500 Dually CrewCab 4X4 CUMMINS/AISIN RearAir 385HP/865TQ 4:10's
37,800# GCVWR "Towing Beast"
"HeavyWeight" B&W RVK3600
2016 MobileSuites 39TKSB3 highly "Elited" In the stable
2007.5 Mobile Suites 36 SB3 29,000# Combined SOLD