After ajustements on few parts, the sub-assembly looks like this:
Exploded views:
Parts I have made:
First PTFE shim
Second PTFE shim
Second ABS plate
The pushing ring:
Modified parts:
The CAT SX front shaft where I put a headless screw and where I drilled a 1.5mm hole for the second pin
First ABS plate (coming from CAT2000 or CAT3000 ABS option)
The CAT SX oneway pulley, flattened on both side:
Part taken as is:
The ABS spring (coming from CAT2000 or CAT3000 ABS option):
