Tires: 2004 chevy silverado tire size, chevy silverado, 2004 chevy silverado

Question
I have a 2004 1500 silverado.  I want to replace the original tires and I am running into a problem.  According to the shop my tires are suppose to be 255/77R16. The original tires on my truck from says P265/70R17 What does that mean? Everywhere I look it tells me that i am suppose to have a different size

Answer
Mila,

Tire Rack did such a good job of describing tire size I suggest you start there:

http://www.tirerack.com/tires/tiretech/techpage.jsp?techid=46

But you should be aware that there are many versions of Silverado's and there are different tires depending on the exact version you have.

BUT if you will find the vehicle placard - which is on the driver's doorpost, it will tell you what the original tire size was and the proper pressure for that size.