Also if you want to upgrade to disc brakes in the front, all you need to do is find an F,M,J body car in the junkyard and take everything from the spindle out. FMJ body cars are 76-81 plymouth volare, dodge Aspen, and 1970s diplomat, or lebaron RWD, and 1984-1989 diplomat, fury, new yorker RWD and fifth avenue. You will need B body disc brake lower ball joints. Your stock upper A arms will bolt right on to these FMJ spindles, ditto for the B body disc brake lower ball joints
You will need 4 grade 8 bolts and 4 "stove" nuts. Stove nuts are a lock nut. Not a nylock nut. See pic below for what you need. If they are a little long, you can cut them down.
Nice thing about the FMJ brake upgrade is the brake rotor part numbers go from 1973-1976 A body , and 1976-1989 FMJ body cars ditto for the wheel bearings, dust seals, brake hardware kits, and brake pads. Theres some variation in the calipers.
NOTE: The FMJ rotors are the same bolt pattern as your charger 5 bolt 4.5" circle with 1/2" studs.
NOTE: If you have a front sway bar, or are planning on adding one, you mount the spindles so the calipers trail the rotors not lead them. This will provide the clearance needed for the sway bar.
If you cannot find an FMJ car in your junkyard, I have a couple spare sets of FMJ spindles along with caliper brackets, and dust shields. You will need to source the rotors, calipers, bearings etc. This is stuff you would probably want to get new anyways. It's all readily available through rockauto. LMK if you cannot find a donor car. I have a decent set I can sell you. All this fits in a USPS large flat rate box.
DoctorDiff online has brake parts like hoses, modern master cylinders along with adaptor brackets and such to make this work. Your car uses the K772 upper ball joint, this is the same ball joint used on all FMJ cars so these spindles are a direct fit.
This all being said, this is all a direct bolt in swap.
Hope this helps
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