handbrake shoe replacement

evening all, my handbrake doesnt work so got a new cable and shoes, anything i need to look out for when replacing them? im a fitter by trade for ford, i fix cnc machines so im not too green when it comes to mechanical knowledge lol!

Check seal on rear of transfer box. Mine was leaking oil onto pads only an extra £6 for peace of mind

thanks, it is leaking a bit of oil, but its hard to see where its coming from. it seems to be from the left hand side of the engine (when looking from above). theres a pipe that loops on itself when looking from underneath on the r/h side of the engine and the drips seem to be collecting on that as its the highest point, so i guess thats the source, but i need to clean it all and the re check it to find out where exactly its coming from.

The one I'm refering too is found inside the drum of the handbrake itself.