I purchased a 2012 Raptor 300MP last fall and have used it a lot. Of course it still had the stock Towmax tires on. I've always pulled some kind of trailer but nothing this big and long. It has just two 7000 lb axles, so just four tires. I would prefer 6 tires to spread the load per tire.
I purchased a Truck Systems Technology TPMS, the 507 system with 4 flow through sensors for $259 straight from them.
Easy to setup and works great. I was having problems picking up one sensor signal. It was the passenger side rear most tire and I think it's signal's line of sight was being more obstructed by the stove, fridge, water heater, ect.
So I also purchased their repeater for $59. Now all four sensor signals register fine.
Anyways, if it starts to beep, pull over. The first time was a puncture, but it was too big to plug so we changed it and replaced it with the spare Towmax. My new tire is a Maxxis M8008 ST Radial - Part # TL30141000 Size 235/80R16 10 ply.
My last weekend trip the alarm went off, pulled over, and a different Towmax was coming apart at the side wall and the air was diffusing out. The slow leak detection works!
Without this system, I would be afraid you would have a tire problem, never see it, hear it, sense it, and drive to long and then it shreds and does damage to the fender well area. Or, destroys the nice rim in the process. Plus, now the other tire is now carrying more load. One more reason I feel 6 tires are better than 4 except the cost of getting a whole new set of tires. Plus, the 3 axles look cooler - oh my!
The TPMS system is the best investment that I made. My 2012 Chevy Duramax has its own tire monitor system.
Hope this helps people who are on the fence on whether to spend the money.
