One of the exhaust manifold bolts broke, and rather than try to get another at the JY, I bought a new pack of 388469S (long bolt, long stud). The long bolt w/short stud is 386197S; long bolt without stud is 381732S.
Short w/stud is 389201-S; short w/o is 392016-S4301.
Aftermarket replacement sets are also available for 5.0L/5.8L: Left
Dorman 03405; Right
Dorman 03407B or
Dorman 03407
These should have Nickel (high-temp) anti-seize applied during assembly.
Y-pipe flange stud & nut
Spark plug heat shield F2UZ12A406A/
F4TZ12A406BA 
