lswoody
Well-known member
Hey guys, I just bought a 2001 GMC Sierra 1500 Z71 about 2 weeks ago and just love it!!!!! Was wondering what tire pressure I should have in my tires. They tires are size 265/75/16. The tires say 80 psi. Is this right or should I lower it???? Also this truck has a 5.3 litre motor. I've been told that this is a 327 cu. inch motor but have also been told it was the 350 cu. in motor. So which is it???? Thanks, Scott Woody