Well,...........<br /><br />I'm Guessing that you're referring to the Sparkplugs,..............<br /><br />I've never had a Problem changing Mine,....Using a Thin-wall 5/8ths" Sparkplug Socket..........
and possibly a ujoint, but not as difficult as some cars are. I remember my girlfriend at the time had a V8 Chevy Monza that the service manual said to remove motor mounts and raise engine to get'em out!!
AC MR43LTS.......<br /><br />Being a 1998,.. That Should have the Vortec Heads on it,........<br />You can tell by counting the Intake Manifold Bolts,...... There Should be 8,......<br />If there's 12 Intake Bolts,... You have a Pre-Vortec motor,+ should use the AC MR43TS plugs....