[C2] Upper Control Arm
Race Director
Joined: Jan 2003
Posts: 17,655
Likes: 3,665
From: Central Arkansas
Square bolt holes or square shaft sections that the bolt holes are drilled in? I know there are two types of shafts one with square bolt pads and one with rounded bolt pads. Not sure if the years have been pinned down exactly for each. If you really mean square reamed bolt holes - guess I've not seen that before.
Thread Starter
Racer
Joined: Jan 2014
Posts: 430
Likes: 17
From: McKinney, TX
Square and round bolt pads is what I meant to say. Just doing some restore on my 66 and found mine have the square pads. I seem to have read somewhere that the square were for a 65 vette and the round for a 66. My question comes from the fact that my 66 has the square one and wonder if it is correct.
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