You are Not alone. I was scratching my Head, and I have beyond Average Mechanical Ability.
I put the Long Machined Nut on Top and The Short on Bottom. This Moves the Shock Slightly Out to give the Cable Clearance.
**The Kit needs a 1 Page Installation Instruction with 3 Pictures showing...
Please confirm the Correct Cable was sent?
This has a 1/4" Offset unlike the one in Picture which is Flat.
One in Picture has a Keyhole Slot this is a Straight Slot.
Excited to get this working.