Hello brake/chassis guys. My 71 Challenger needs upper control arm bushings so I'm trying to decide what other work I should do while it's apart. Car still has manual 10" drum brakes (originally 318 car). Now has big block. I have 2 parts cars I would like to use parts from if possible: 77 Newport & 73 Coronet. Newport is power disc in the front. Coronet is manual disc in the front. I read in the tech section that only A body disc brakes will work on the e body. Is this completely true? I thought I've heard about using C body disc brakes for conversions before. Thanks for any advice!