Remember this..
"Grease gears ..oil bearings"
white lithium grease ...light oil ...gun oil is fine..

Ifix or lubricate as I feel it is needed..a little squeek ..get's a lube..Binding up on spinning reels I've taken the entire reel apart..every part..and yes be careful and remember howto put it abck together.

Baitcasters..different story .disassemble more carefully..I only take them down so far..they are more difficult for me than spinning..

Here are some schematics for older Garcias.
http://www.networkdimension.com/garciamitchell.html