Look here
http://www.hotrodders.com/forum/99-tahoe-door-pins-136678.html
you dont
How do you change the door hinge pins and bushings on a 2002 GMC 1500 pickup truck?"
NO. In late 1999 Chevy REDESIGNED ALL trucks and SUV's. Nothing over 1999 will interchange with your 98 Tahoe.
I have a 1999 gmc 1500 sierra,need to replace door pins and bushings.door sagging.
How do you remove door speakers on a 1999 chevy tahoe
THERE IS A CHANCE IF THE DOME LIGHT IS STAYING ON IT IS NOT THE THE DOOR SWITCH, BUT WORN DOOR HINGE BUSHINGS,
Remove inner door panel for access
garage door
If it's the same as my 1999 2 door 4x4. You have to remove the grill. Then the headlight modules are right there and easy to get too.
Have to remove the door, then remove pins and bushings
Try replacing the hinge pin bushings. Common problem on these trucks.
I've worked for GM for over 10 years. Look at your door hinge pins and bushings first, they are probably wore out. To tell if the pins and bushings are worn out, open the door and lift up on it from the end opposite the hinges. If the door has any play at all the pins/bushings are worn. If you let them go too long the holes in the hinge wear the bushings sit can get wallered out.
If you open the drivers door and look in at the door jam you will see a sticker that will have that info written on it.