OK quick update.
I highly suggest you use the Blazer brake hoses and brackets
I used the Russell braided lines they are way to long and do not "lock" into the caliper I was afraid with normal driving they might twist over time and come loose.
Now that I was going to use the Blazer brake lines I needed a thread adapter GBody standard Blazer metric
Also you need to install the Blazer brake line bracket and bend the brake hard lines down.
It looks like the line is on top of the A-Arm but it is no where near it. I actually went out and re-checked after I seen this pic.
Also you can see how the Blazer brake hose "locks" into the caliper
Finally with a 15x7 JJ Olds SSII rim you will need a 1/4" spacer for them to fit otherwise the caliper hits the rim.
This is something I was not expecting from the other installs I have seen in the past.
What is the backspacing on these rims?