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 
![exhmanbolt.jpg 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 [url=https://www.amazon.com/dp/B00068PTH0]Dorman 03405[/url]; Right [url=https://www.amazon.com/dp/B0094ECO20]Dorman 03407B[/url] or [url=https://www.amazon.com/dp/B00068OITK]Dorman 03407[/url]
[url=http://www.supermotors.net/registry/media/1056534][img]http://www.supermotors.net/getfile/1056534/thumbnail/exmanbolts.jpg[/img][/url]
These should have Nickel (high-temp) anti-seize applied during assembly.
[url=https://www.supermotors.net/registry/media/1083968][img]https://www.supermotors.net/getfile/1083968/thumbnail/antiseizes.jpg[/img][/url]
Y-pipe flange stud & nut
[url=https://www.supermotors.net/registry/media/1168560][img]https://www.supermotors.net/getfile/1168560/thumbnail/exmanflghdwr.jpg[/img][/url]
Spark plug heat shield F2UZ12A406A/[url=https://www.amazon.com/dp/B000O01HP8]F4TZ12A406BA[/url]](https://www.supermotors.net/getfile/1055473/fullsize/exhmanbolt.jpg)