Tires: Tire size for 1986 Toyota Landcruiser, r15 tires, tire placard

Question
I have a 1986 Toyota (F60) landcruiser that currently has Firestone P225 70 R15 tires.  These look a bit undersized and I would like to find out the original tire size before I replace them. If you could please answer my question it would be appreciated. Thanks  

Answer
Karri,

On every vehicle sold in the US - and I understand this is a worldwide practice as well - there is a sticker – commonly called the tire placard - that lists the original tire size and the proper pressure for that size.  The placard is usually located on a doorpost or in the glove box – but sometimes it is located in the trunk or on the fuel filler door.

BTW, it doesn't matter who makes the tire or what pressure is listed on the tire's sidewall, if the tire size is the same as the placard, then the pressure listed on placard is also appropriate.

One word of caution:  Some trucks use tires with the letters "LT" in front of the tire size - and some trucks use tires with the letter "P" in front of the tire size - and some trucks use tires with the letter "C" after the tire size.  You should not use "P"'s in place of "LT"'s and vice versa.