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  1. IRS Knuckle to Control Arm Fasteners

    Factory Five Roadsters
    What size are the 6 bolts that connect the upper and lower control arms to the knuckles? It looks like the upper control arm to knuckle bolts are a different size than the lower control arm to knuckle bolts. Obviously these must be Grade 8. I normally buy parts from forum vendors; but I...
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