I need some help here. I just bought a 2003 GMC Sierra 2500HD longbed, extended cab, 4X4. The door sticker claims that the proper inflation for my tires is 55 PSI front and 80PSI rear. The tires are Bridgestone radials. This strikes me as being exceedingly high. Can someone help?
Steven Pettijohn snipped-for-privacy@att.net