The way the tail pipe is attached to the muffler makes the muffler want to rotate and allow the tail pipe to fall down. Were it not for the other end of the muffler being attached to the under-axle pipe, that's what would happen.

So, when the connection at the right end of the muffler rusts out and gives way, the muffler rotates and ... there you are.

For years I repaired that mess by installing a new rear muffler and new under-axle pipe, and moving the good tail pipe to the new muffler. Major PITA.

Where the pipes are connected by a clamp, especially a Volvo-type clamp, the pipes are slightly bottle-necked in, and I found them to be very difficult to separate.

Now I approach the problem another way. Install a whole new cat-back system. That way the only PITA is in breaking loose the bolts/nuts holdng the cat to the front muffler. 2-days soaking in P'Blaster usually worked. Easy to access by driving the car up on the oil-change ramps, with both ramps on the right side.

Next, either I pulled the whole system off a handy 240 parts car (had a few, all now exhaust-free) or get one from fcpgroton or another BB advertiser.

Easier job, less foul language, happier me and happier household.

The muffler/under-axle pipe goes bad at that corner due to use of the car for mostly trips of 2-3 miles or less. The exhaust system never gets completely dried out, leaving moisture to accumulate at that corner. Here in the Gulf coast area, high humidity is a real contributor to this failure.

I sorta got the process down to more of a science than an art. Post back if you are interested. Allow a half day, to include clean-up.

Good Luck,

Bob

:>)

PS: The Volvo mufflers lasted longer than any others.