You will need a drill to remove rivets that hold it to the door, and then nuts and bolts to replace rivets or use more rivets, there are only 2 or 3
Have a piece of wood/stick to hold window up while you do the work
NEVER EVER grab or even touch near the edge of tempered glass with METAL anything.
tempered glass is very strong in the center, it will exploded if you touch the edge
Slide rollers out of window track to remove old one, once rivets are out
Then slide in new regulator's rollers to window track and "roll up the window" crank until new regulator holes match door holes