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02-21-2013, 10:16 PM #1
- Join Date
- Nov 2012
Question : What grade of bolts to hold tow hooks onto frame ?
I'm installing a RPO addition to my 1990 1500 Silverado and the hooks go through the frame and into two 1/2 " steel threaded blocks. But I don't know how strong they need to be. Grade 5 or 8 ? Thank you !
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