if you open the drivers door and look on the door post for a sticker, it should tell you the factory tire size
P245/75 R16 Chevy stock size
2wd or 4wd?
235 75 15
Stock size is Standard 245/75-R16 Stock option size is 265/75-R16
P195 r15
You need a 3/8 Allen key.
The 2011 Chevrolet Silverado-1500 has a V6 engine.
The 2008 Chevrolet Silverado-1500 has a V6 engine.
The 2007 Chevrolet Silverado-1500 has a V8 engine.
The 2013 Chevrolet Silverado-1500 has a V6 engine.
The 2014 Chevrolet Silverado-1500 has a V6 engine.
The 2003 Chevrolet Silverado-1500 has a V6 engine.