had to mail them back to MI Bearings. Mounting holes were for the 1/2" bolts and no casting numbers on them. one had a number close to the zerk fitting hole that said XRF k14.... that crosses over to an IDLER ARM! so I have no clue.
Sue emailed back and said the disk LBJ's were still available and would have to send them to the factory to confirm the mislabeling or whatever.