Those old quivers need a little work to quiet,but it can be done.
First,put threadlocker on every screw and tighten them down good.
Any wires that cross or touch each other,apply moleskin to the contact areas.
Now,the two pieces of aluminum that form the bracket that attaches the rubber gripper to the wire frame.These two pieces are screwed together with,I think,4 screws but there is a space between the two peces of aluminum.Fill up this gap completely with silicone caulk or Goop.
It is not a bad idea to put a small Velcro strap around the lower bracket and limb.This lower bracket can walk of the limb during continuous shooting.I get those Velcro strape used for tying up electrical chords etc..
Your quiver should now be quiet.