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.
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