Could your exhaust possibly be clogged overheating your turbo? Jerrys mentioned a broken baffle blocking a muffler outlet before and a leaky one will sure make some build up in the tailpipe.
Just a hmmmm guess, they could have both been abused or worn out previously.


89 v6 Raider 5spd
89 v6 Montero auto
86 TD Trooper