Hello everyone I was google the other day tryin and find tires. I stumbled upon this link and the dude on there as talking about trying to get a pair of 225 40 19. The problem was the it was a rare tire size.(the whole point) He said that he used a tire conversion chart and it said that he could use 245 35 19 and there was only like a 3% difference. Is this correct? Can i purchase this size for the front and possibly do 255/35/19 in the back?

Please help.