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Discussion Starter · #1 ·
I noticed in the junkyard that one caprice had round upper CTRL arm shafts (Item 48, in Compnine image), and another that had a flat section in the middle.

My current ride has the shafts with the flats.

Why is there a difference, was one a design improvement?

 

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Round shaft was earlier production--no idea how far back the "shaped" (flat) shafts were implemented, but I'm thinking it was done to provide better access/clearance around that area--nothing more.
 
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