Sorry I can't find any pictures on my puter.
There is a hole on the left side of the bar I have pictured and it has a counter bore so that the head of the pin when installed is flush with the bar. The picture of the tractor has a red arrow of the hole in the frame where the pin goes in at. You will need to pull the tunnel cover off and put a cotter pin through the pin on the drive shaft side of the lift bracket. If I remember correctly you will need a longer pin than the one that is in there now.
Here is the link to the cat 0 parts.
http://www.partstree.com/parts/?lc=c...&dn=0064700001