Just did mine few days ago broke all three.
Common. They run hot, and get lots of road-splash. Guaranteed to corrode.
Tried drilling them out went to several drill bits.
As you found out, that's a tough job with little chance of success.
Went to Home Depot bought a bottle of MAPP gas
No, you didn't. Real MAPP gas has been out-of-production for over a decade. You bought a yellow bottle of MAP-Pro, which is
deceptively sold as if it were MAPP, but it isn't. It's only slightly hotter than propane. Mostly a waste of time. If this country had a functioning Federal Trade Commission, (FTC) the sellers of MAP-Pro would face fines and other penalties for deceptive trade practices.
Oxy-Acetylene, or one of the new "inductive" heating elements is the better way to do this. I'm thinking that when my fasteners broke on my '97, I smacked the broken pieces out without heat--but I don't remember for sure.
OTOH, it's hard to argue with success--and you got the job done.
and heated it up and popped them out with a punch. Found a 6 stud/6 nut kit at roc auto. Worked perfectly.
I just installed generic bolts 'n' nuts, with some washers here and there. Stuff I had lying around the shop.
Mine did not have a gasket or donut on the stock setup and the replacement exhaust didn't come with it either. when you bolt it together it will seal assuming the rest of your exhaust is stock..
The gasket (at least for my vehicle) is this one:
https://www.napaonline.com/en/p/EXT31618?
The flanges on the pipes were warped, and the gasket didn't seal very well. Tried to seal it with Liquid Miracle, That helped, but didn't completely stop the leak.
https://www.amazon.com/Permatex-803...Permatex+exhaust+sealer&qid=1603828472&sr=8-1