TRANSFER CASE LEAK

ON MY 1989 S-10 THERE IS A BOLT ON THE TRANSFER CASE AT THE BOTTOM
THAT LEAKS TRANS FLUID.

THIS BOLT IS VERTICAL & WHEN UNSCREWED HAS A SPRING BEHIND IT. ALSO A
PLASTIC ROD HANGS DOWN BUT ONLY HANGS SO FAR.

WENT TO TIGHTEN IT & THE BOLT BROKE. UGH!!!!!!!!!!!!!!!!!!!!!!!

NOW I AM STUMPED ON WHAT TO DO. I THINK SOME OF BOLT IS STUCK ON THE
THREADS.
I AM SO TICKED OFF.

THIS HOLE NEEDS TO BE CLOSED TO KEEP FLUID FROM PEEING OUT & THIS ROD/
SPRING MUST DO SOMTHING.

I DON'T KNOW IF I COULD TAP IT OUT, FIND ONE OF THOSE RUBBER OIL PAN
PLUGS OR HAVE A WELDER JUST PATCH A COVER OVER IT TO BE PERMENANT.

HELP ANY IDEAS......