Tried doing a search and coudn't find any info. Maybe I'm just tired.
My situation 64 elky 4 wheel drum. Want to convert to front disc. have all components from a 70's A body to donate.
Will the spindles swap over? will probably use a s10 master and booster(smaller)
Plumbing and proportioning is no problem I just need to know if the factory hardware will interchange.
This way i can put a Baer setup on the A body donor :)

Yes, they will work. The spindles are a direct swap from any A-body 64-72.

Thank you