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Old 09-21-2016, 09:03 PM   #128
notchbackgta
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Join Date: Dec 2011
Location: Earth, NJ
Posts: 479
Re: 68 C50 Looongbed pickup build

Quote:
Originally Posted by rkn463 View Post
So far as the grade 8 bolts, my motto is "if it's worth doing, it's worth overdoing!" That and every build I've seen where a crossmember was drilled out, the rivets were replaced with grade 8. This is a mix of cross members and reinforcing plates, so... Refer back to motto
Well on the frame the grade 8 are worth it, I could even see using grade 9 because that is a place that matters. But welding the grade 8 into the manifolds is just waste because you will kill the heat treat of the bolts once you weld them anyway. But I totally get it, I overdo and most of my projects snowball into much larger projects because it's worth doing while I am in there anyway, lol

Quote:
Originally Posted by rkn463 View Post
I settled on carriage bolt heads to fit down inside the manifold
Glad to see you went with something more reasonable
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