If it's a small hole you could try using a bycicle inner-tube patch. The
hardest part would be getting all of the grease off of the repair area. If
it doesn't work you are only out $2 and a little time.
I've tried repairing and patching boots. Never
worked for me. Although I've heard of people doing it
with good results. Probably worth a shot.
OTOH, I would take a close look at the boot and tie rod
assembly. You can usually replace the boot without
replacing the rod end.
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