Service manual
Haynes / Chitlins aren't useful; certainly more
portable. But they try to cover too many years
in one little book and don't have the depth. On
the plus side they often show you "shade tree"
tools / methods where the Helm manuals tend to
tell you to use GM Tool 269-0069 and installation
is the opposite of removal.
So like many tool choices, the right one is "all of
the above"






