The parking brake cable has to be firmly attached to the backing plate.
Test that your modification works properly before reassembling other parts.
You don't want your parked truck to roll off on you.
As long as the old-style clips still have good tension, they can be reused.
A good pair of needle nose pliers to grab the end of the pin, push down on the spring clip and twist the pliers 90 degrees to line up with the slot.
Brake work can be very frustrating if you try to do it without some previous knowledge or help.
Take your time. Ask questions on this forum. Search the net for instruction videos.
I was 13 years old when I watched a mechanic (Ed) do a brake job. I was curious and he showed me things that helps me today.
It is important to make sure that the orientation of parts is correct during re-assembly.
(
https://chevy.oldcarmanualproject.com/shop/1948_51truck/51ctsm0515.htm)
Make sure the threads on the adjuster are clean and free. They like to rust (brake dust and humidity).
Binding adjusters can be a real pistol when setting the shoes properly against the drum.
