Pulling To The Left When I Brake

I wouldn't put much faith in the alignment. The worn LCA bushings would make a clunking when going over railroad tracks and good to fix them since in theory the whole torsion bar could slide back if the rubber had totally degraded.

If the brake shoes have unequal length liners (common), insure that the longer liners are on the aft side and the shorter ones fwd. On my 64 Valiant, a gomer had installed new brake shoes with 2 shorts on one side and 2 longs on the other. That caused a pull.

Drum brakes are much touchier to changes in friction, due to their "self-amplifying" effect. That is why you don't need a booster in an A-body drum car. In the worst case, the shoes can even "self-excite" and lock up due to gunk without any pedal pressure. My 1982 S-10 pickup did that. One rear wheel started dragging after applying the brakes. I pulled it and found leaking brake fluid. The wheel cylinder was rusted internally. I bought it new 4 yrs before. I envisioned an open 50 gal drum of brake fluid at the Chevy plant that the workers poured old cokes in or they let rain water drip. Change your brake fluid every 4 yrs unless you use silicone like me. BTW, my first and last GM. Both mirrors fell off while driving, handles came off in your hand, ...