I have used the haynes manuals for years and never broken a bolt, that I remember. There is no substitute for judgement. If you feel that the torque specified is too high you have to back off.

Myself, I find the nm and foot pound values listed side by side very confusing and often mark out the nm so that I don't use the wrong value when using tools calibrated in foot lb.

Sorry you had the trouble and glad it worked out without too much pain.

Tom W

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.