Here is some reading material for you.
http://www.onlycubcadets.net/forum/s...ad.php?t=33244
Most of it is related to the Cyclops tractors but things like water in the axle tubes and the braces are common to the 72/82 series also.
The square plate bolts to the frame, the other part bolts to the axle tubes. Here are some pics of it on one of my 2182's