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1977ChevGMCK2025Fan

04-03-2021 12:09 PM

Tow Hook Question

Hi:
I am trying to add factory tow hooks to my ‘78 K25. I have new Grade 8 hardware-my question is what do I torque them too? I have heard as tight as you can; and I have heard doing that will stretch the bolts and cause a stress failure? So, I am hoping someone here has the answer.
Thanks,
Marvin

kwmech

04-03-2021 01:19 PM

Re: Tow Hook Question

Bolt size?? the 1/2'' bolt can get torqued to 100. 9/16-120lbs, 5/8''-145/50

1977ChevGMCK2025Fan

04-03-2021 01:32 PM

Re: Tow Hook Question

Sorry, bolt size 5/8 x 11 coarse. Torque to 145 ft/lbs?
Thanks?
Marvin

1977ChevGMCK2025Fan

04-03-2021 05:01 PM

Re: Tow Hook Question

Thank you for the great response, KWMECH!
Marvin

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