I just changed out the bulb on my 96 to a red LED at the same time that I "shortened" my A/T shift lever and changed out the shift knob. I already had the factory shift knob off so it was easy to get the cover with the gear indicators off. The bulb in mine was a 194, but I'm not sure if it will be the same for a 98. One you get that off, it's a pretty straight forward remove and replace.
Amsoil foam filter
Upgraded headlight Harness w/ Sylvania Cool Blue
APS 996A Remote Start Alarm