To extract the broken bolt, I used a Snap-On A80A stud remover/installer. Afterward, I chased all the threads with a rethreading kit & thread files. Then all were rinsed with brake cleaner (including inside the heads & the EGR fittings) and coated with nickel anti-seize lube.
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I didn't fix it on this truck, but the evaporator insulation at the L edge of this pic can be replaced with a more-robust modern material, like this:
![10studxtrct.jpg To extract the broken bolt, I used a Snap-On A80A stud remover/installer. Afterward, I chased all the threads with a rethreading kit & thread files. Then all were rinsed with brake cleaner (including inside the heads & the EGR fittings) and coated with nickel anti-seize lube.
[url=https://www.supermotors.net/vehicles/registry/media/1055473][img]https://www.supermotors.net/getfile/1055473/thumbnail/exhmanbolt.jpg[/img][/url] . [url=https://www.supermotors.net/registry/media/1056534][img]https://www.supermotors.net/getfile/1056534/thumbnail/exmanbolts.jpg[/img][/url] . [url=https://www.supermotors.net/registry/media/1083968][img]https://www.supermotors.net/getfile/1083968/thumbnail/antiseizes.jpg[/img][/url]
I didn't fix it on this truck, but the evaporator insulation at the L edge of this pic can be replaced with a more-robust modern material, like this:
[url=https://www.supermotors.net/registry/media/964781][img]https://www.supermotors.net/getfile/964781/thumbnail/evapins.jpg[/img][/url]](https://www.supermotors.net/getfile/770510/fullsize/10studxtrct.jpg)