20 (twenty, total)...5 (five) per tire
5
5 lug nuts
open trunk there are six hand tightened plastic wing nuts undo all of those the entire assembly will come off then you may change bulbs
you open the trunk. Pull back the carpet covering the back side of the taillights. Remove the plastic wing nuts, about six or eight. Slide the whole taillight assembly to the rear. The bulbs pop out of the assembly for an easy replacement.
19 mm
2003 buick century wheel stud size = 12mm x 1.5
Remove the lug nuts
100 lb/ft
In order to remove the alternator you must first remove the belt. The alternator is held in place by two bolts and one will require a 13 mm socket to remove it and the other one requires a 13 mm wrench to remove the nuts while holding the long bolt with either another 13 mm wrench or socket. The alternator takes some force to remove it and pry bar might help. PRECAUTION: When using a pry bar do not use a pulley as a pivot for the pry bar, you will ruin that pulley!!!
100 Foot Pounds in a cris cross direction.
Take the inside trim panel off. There are 8 nuts holding it on.
It has 2 nuts in the bottom of the frame and three bolts on the transmission case