You list a 2WD in your profile, so no transfer case?
And no reason to drain fluids to replace clutch parts in any case.
You can drain and refill if you want, just not required.
Yes, the M5OD-R1 manual transmission uses ATF
Pre-'98 should use MERCON, but Ford no longer has it made so equivalent is Dex/Merc which is still available.
'98 and up uses MERCON V
Many have used Royal Purple Synchromax in any year with good results, it is a synthetic oil product
Uses about 2.5quarts if fully drained
Transfer case info here if needed: Transfer Case Fluid Change