Not to be snooty, but the one's linked by Tim would be just fine. A hardware store gr 5 would be plenty strong in that location or any location. 6000 PSI each for 5/16. No need for grade 8 on an old truck. Sorry, it's the engineer in me. Everytime someone says gr 8, I'm going to explain it's not required and an expensive mega overkill.
Right is right, even if everyone is against it, and wrong is wrong, even if everyone is for it. - William Penn
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