Topic: 69 Crossmember Nut ?

[Brian Conway]

Looking for some info. on what is inside the front frame rails, one each side, that the engine bay crossmember 1/2" x 13 x hex head 1" long bolts screw into ?  The bolt info is in the spread sheet furnished by Jim but nothing about a threaded nut ?  Thanks,  Brian

[jwc66k]

Looking for some info. on what is inside the front frame rails, one each side, that the engine bay crossmember 1/2" x 13 x hex head 1" long bolts screw into ?  The bolt info is in the spread sheet furnished by Jim but nothing about a threaded nut ? 

The "threaded nut" is part of the frame rail sub-assembly, welded inside the rail, is not a dealer serviced item and would not be documented in the assembly manuals or service documents (MPC). (It comes that way.) That being said, it could be a thick, tapped plate that is wide enough to fit between the rail's vertical sides to prevent it from turning, or a spot welded nut, or a "U" plate, etc. I've never seen inside a frame rail so I can't say.
Jim