why is it so hard/expensive to find new oem style lower control arms for my 81 c10 when i see the ones for the c20's for cheap and all over the place?
Who knows. Maybe haters just gonna hate.
Anyway, here is a set for 300 bucks that look real close to OEM:
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Link to Brothers:
http://www.brotherstrucks.com/73-91-LOWER-CONTROL-ARM-PAIR-1_2-TON/productinfo/LCA7387/
But I have to ask; why don't you just re-bush your stock arms?
The end result will be far superior to any aftermarket/reproduction product available today. Regardless of who the manufacturer is, it doesn't matter. The quality of steel currently used to make these types of parts can't compare to the steel used to fabricate the original component.