Congrats on the truck. All GM trucks have anal front ends and like to have grease at all times. Every oil change I suggest to check all lube points on the front there are somthing like 8 or 10 of them. Make sure the boot is firm not leaking grease 1 to 3 pumps of grease should do it if it was taken care of propprly. Also bring the front up and check ball joints, wheel bearings and inner and outer tie rod ends for play, these are common wear points for these trucks. Check front and rear difs. and transfer case for correct fluid level. And don't forget, turn the accesories on and press the gass pedal 3 times to reset the oil light or use driver controls on the steering if you have those.:biggrin: