Wanted: Tips and photos for installing 4-Speed Hump and Clutch Torque Shaft frame bracket

What year and make? Some bolt on and some are spot welded.

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1968 GTS 340, September 1967 build for what it's worth. Wow, based on Kendog and SuperCuda replies, it looks like the factory oriented and welded them pretty randomly. My car does have a rubber plug where the top hole is supposed to be. Thanks.