63 GMC parking brake cables

[keithh999]

Howdy gang....maybe you can help me track down some new parking brake cables for the wifes 63 shortbed stepside. we have the front cable already installed but are running into an issue on the two rear cables cuz this truck has leaf springs and this funny little triangular piece attached to the drum end of the cable. noone seems to have the exact replacement parts.. can you lead me in the right direction please?? Also the bench seat needs a few springs that arent the zigzag style...they actually have coils on both ends. any help would be appreciated on where i might be able to locate these parts!! not having the parking brake means someone has to hop out and put the chocks in place to keep the truck in the driveway and that is a real PITA!!! thanks in advance!!
Keith and Jessie