Yeah I can see that now via the link. The first post I can't see any pic, there's just a tiny empty black square :-\
The long one is weird, haven't seen one like that before. What thread was it from?
Isn't the FJ rear case the same as an L series 5spd? If so just use the standard housing, punch out the roll pin, switch colored cogs, refit roll pin, insert in case and rotate until cog engages the plastic drive gear, you'll feel it and be able to see it like Jason says.
With the red cog (4.1) it should rotate about 180degrees from original position. Make note of where the locking tab should fit, machine a small groove (I used a 4"grinder with thin cutting blade). Refit with a new 'O' ring and a small amount of wheel bearing grease on the 'O' ring