Thank you for sharing that post I will look more at it. From what I saw the two are vastly different. Attached are pictures of the inside of my top arm, the serial number plate and the plaque that says it was made specifically for my step dad. As well as the bottom arm. While I felt sure that a pic of the bottom arm disassembled was wanted I’ve not done that yet.
I will also look for a phone number for seyco but if someone knows it right off that would be huge help also.