Replacing the U joints on a factory 69 440 M code Barracuda. The U-joint at the rear axle end of the drive shaft is an odd one, I have not been able to find one after a long search.

The X dimensions from end of cap to end of cap are 3 5/8 X 3 1/8. The 3 5/8 dimension has caps with a diameter of 1 1/8 and the 3 1/8 dimension has caps with a diameter of 1 1/16.

Anyone know of a source that may carry one of these?
Thanks,
Wolfe