Coil balance shoe
The shoe you have here is no longer available so the 15-177 Coil Balance Shoe is what we recommend to use in place of it. To confirm this will be a fit, be sure to carefully look over the specifications and compare them.
This shoe is compatible with the Series 152 Coil Balance, which is attached using the 33-072 screw. To determine the correct replacement for the coil spring, you'll need to look for a stamp/marking on the existing coils.
If yours does not have one, please see the tutorial below this thread for instructions on selecting the correct coil weight option.
To replace the coil supports you'll need the 15-143 Coil Bushing, 15-144 Coil Bushing Cap, and 15-145 Coil Support Barrel. All three snap together to create the support.