Quick Q on the GQ TI Rear Stabilizer Disconnect

Firstly, does anyone know how #1 in my pic comes off, I assume undo the 4 bolts but what holds the cable in?

Secondly, anyone know the best method of replacing the shaft with the ball joint that attaches 2 the rear stabilizer bar ( Pic 2 )? I assume this part can't be bought

GQ Rear Suspension.jpg


Cheers

Toddie