I use a weird combination of long extentions, a ratcheting 3/8 breaker bar, a universal, deep 15mm socket. I've been really lucky on my late model Y pipe dropping.....no broken studs. Upon install, I like to brush on a nice heavy layer of anti-seize on the threads full length. That helps next time you've gotta fight it again.
On the back of the Y pipe, where it meets the single pipe, I suggest removing all those studs and using bolts. I now only have to drop the Y-pipe to drop the trans or pull the engine.
The side that you've got the last nut still there...thread on the other nut on the same side of the engine....then try to loosen the stuck nut.
Originally Posted by Toreador4x4
get a body lift, then you dont have to remove any of the exhaust
You 3.0's have it nice..... 4.0 it's IMPOSSIBLE to drop the trans without removing the Y pipe. At least the SOHC 4.0...