If by "gland" you mean the output shaft seal, then the spring should be facing forward (towards the inside of the gearbox).
No it doesn't need to be glued in. Take your time tapping it in place. Try and find a socket or something similar in size to the seal to tap it in place.
"Put a little gravel in your travel"
Darrell - Albuquralque
2014 Patrol - Babe the Blue Ox
EFI Map OR 1.02
Throttle Body Vacuum Ports
K&N Air Filter
Raceway 2-into-1 Header (Right Side)
Previous Urals Owned: 2004 Wolf, 2006 Tourist, 2006 Patrol (TOW), 2006 Patrol (TOM)