Leaf Spring Bolt
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Grade 10 bolts
You really need to get these from Ford. They are specific grades, size and length. Especially length for dynamic clearances. What year is your truck? The 2004+ (non Heritage) model front spring eye bolt removal is hindered by the fuel tank on the LH side. If you cut off the old one, when you place the new one in with nut on the inside without some sort of shield for the fuel tank, you could be asking for trouble if side impact occurs. Be safe my friend. buy or make a shield for that bolt tip. Or better yet. Drop the fuel tank and replace the bold in the correct orientation.
Have fun!
Have fun!