1967-1968 Chevy Camaro Driveshaft! This has a 27 Spline Output and measures 50” from center of U-Joint – Center of U Joint. It has casting number 3790024 on the end. Please view pictures with care. I’m not sure what transmission or anything this came out of but someone else with the same casting said his came with an M22. The U-Joints are offset out of phase. I read somewhere that 67-68 driveshafts were slightly different than 69 driveshafts but I have no idea how to differentiate and most I am seeing are listed as a 67-69.
PS: I know my measuring tape is slightly off in the pictures, it was hard to get it to stay relatively in place while also taking pictures.