I found the specs for the cab and rad support mounts in the 68-72 factory assemby manual.
I don't recall seeing anything related to bolt torque specs in the FAQ Index...
Here's the link though:
http://67-72chevytrucks.com/vboard/s...d.php?t=157669
BTW....for anyone who hasn't already done so, installing the new cab mounts made a huge difference in my truck's ride quality. They also cured some squeaks and rattles that I never could isolate
Pretty simple job and the parts aren't that expensive.
Eric