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As I work to replace my rear suspension on my 86 Comanche, I have to replace at least some of the spring mounting bolts. My obvious choices are "real" grade 8 or grade 5 bolts. My initial choice is grade 8. The salesman insisted that that is overkill, as the 8's are not as good in applications that have shear loads. My first thought is that he is wrong, and I should be using 8's for the spring bolts. My second thought is that this is going on a truck that has seen more than a few winters of Canadian salt, and the weakest link in the chain is likely the steel in the brackets, not the steel in the bolt. I recon the steel will distort and fail before the bolt will shear. Any thoughts from the group? A related question: Should I reuse ANY of the bolts? (and I apologize for the typo in the title...)