There is no such thing as a 1991 Chevy Celebrity
Yes
5 qts
yes
yes
Yes, if it fits the holder.
Pull the old fuse out and put the replacement fuse in.
1991 to 1992 rs or z28
Yes you can.
Not without fabrication.
Master cylinder. Mounted on the firewall, driver's side.
The transmission oil goes in thru the dipstick tube.
10w30