Hello Guys,reading your stuff here.Need some help,not doing the chalk thing,this is my thought,correct me if I am wrong.My Truck had OE 215/70/15. On door PSI FRONT 30 REAR 33. Now I have 245/55/19 from a Highlander Limited reading on door FRONT 30 REAR 30 My wife 2012 Highlander has the same on door. I put on tires 32PSI due to the fact that the Toyota Dealer that install the wheels and tires said they would use 38,when checked it had 36,it could have been a bad reading, Anyway what I am trying to get is that 36-38PSI is to much and with 32PSI feel it runs much nicer,no bumpy or ruff ride. Let me know what you think,been playing around with manual on Tacoma due to the different sizes of wheel that is comes with and I think it sounds ok what I am doing. Have a 2012 TOYOTA TACOMA 4CILINDER DOUBLE CAB,again it came with 215/70/15 and now it has 245/55/19,got them at a local Toyota dealer and they looked to good. Checked everything to make sure they would fit and they look awesome,what a change.Found out here that these wheels would fit,so far no complain,the other thing is speedometer off,Toyota local dealer that install says that on my truck they have no way to calibrate,so I have back off of that.Like always thanks for help,let me see if I can put a picture of truck,still learning how use site,lol.