Where to find 73-87 a arm u bolts??

[lil_sahara450r]

Hey gang! I'm doing a complete front end rebuild on my 66c10 and I'm going to hang the lower a arms using the thicker and beefier 73-87 style u bolts (advice taken from this board). Just wandering where I could get some of these without going to the junk yard? I went to the local O'reilys but they didn't know what I was talking about (they are worthless here, anyone else have that problem??).

So.... Where can I get some? Thanks guys!
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