The later touch controls only used a boot over the knuckle, not the cylinder, and if you order one from IH dealer the new one is what you get. If you order one for Super A it will fit over the cylinder, or TM Tractor, one of the site sponsors also sells the full size boot. If you have a touch control that originally used the small boot, it does not have the groove on the lip to hold the boot in place at the extension on the casting.
"The Constitution is not an instrument for the government
to restrain the people, it is an instrument for the people to restrain the
government lest it come to dominate our lives and interests." Patrick Henry