Use the factory spec tires 245/75R 16 (Improved statement:or 265...mine has 285 on it and speedometer and springs are fine.)
If you don't the rear leaf springs won't sit right and your speedometer will be off.
The 2002 GMC Sierra-1500 has a V6 engine.
The 2002 GMC Sierra-1500 has a 4.3 L base engine size.
Listed in the owner's manual and on the driver's door post.
15 mm
What is the stock size tire for a 1994 sierra Z71
The 2010 GMC Sierra-1500 has a V6 engine.
The 2011 GMC Sierra-1500 has a V6 engine.
The 2009 GMC Sierra-1500 has a V6 engine.
The 2003 GMC Sierra-1500 has a V6 engine.
The 2013 GMC Sierra-1500 has a V6 engine.
The 2004 GMC Sierra-1500 has a V6 engine.
The 2007 GMC Sierra-1500 has a V8 engine.