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Assuming you did an LT275 and not a P metric. According to the TRA tablesNow, question is, what should I be running for air pressure in these? Sidewall says 80 lbs max. They are Nankang AT-5 Conquerer’s. E rated, 10 ply.
Assuming you did an LT275 and not a P metric. According to the TRA tables
Front needs 50psi to make 2680lb per tire for a total of 5260 which is what my 18 front axle is.
Rear needs 40(2280lb) to 45(2465lb) empty. You might even be able to go to 35(2080lb). Since my 18 is a DRW I don't have real weights for a SRW. I would run 5-10 psi above the above pressure so you don't need to watch pressure change due to temperature getting colder as tire pressure drops 1 psi per 12F temp change.
Your TPMS will trigger below 65(3195LB) rear if you have a 2500.
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