I sprayed it on for a couple of days but I wasn't in huge rush. They get rusty after all these years. Have you downloaded the service manual for your tractor yet? They can be found in the Technical Library - Tractors section of the site
http://www.onlycubcadets.net/forum/f...splay.php?f=19
For my 122 I needed the 1x2/3 Series. That threw me for off when I first found the site but now I know that it stands for 102,122 and 123 series of tractors that was being built at that time.