My younger daughter spill a yogurt in the seat and I dint notice till a few days, it was dry and sticky, so I took out the fabric of the seat to wash it, and I had to replace the hooks on the harness, and I didn't want to wait till Monday, so I came whit this solution.
This is an emergency tool, its was very usefull to me.
Hope it useful to you too.
Step 1: The Tool.
First, we need a long nose pliers, I have a spare one, so I used the old one.
Whit the dremel cut wheel, carve notch neat the top of the nose of the pliers, in both sides, the nearest to the top, the better results. The tool is ready.
Step 2: The Hooks
Now we have to do the hooks rings.
It can be done in different sizes, but for me works in this size, I don't know the precise diameter of the bolt. But, you can figure it out.
The hook must have a light displacement in the point in order to close properly, and in my experience its better done when you use double wire like in the picture.
I found this Stainless Steel wire on the flea market, its the kind of the cable company uses to fix stuff in the light posts.
Turn the wire around the bolt, as many times you you need, then whit the dremel, cut the rings in half.
Whit the pliers, grab the ring by the opposite side of the cut and compress, that way the ring will open and we are ready to go.
Step 3: An This Is How Its Used.
Hope its useful to you.