Truck Cranks but Won't Start
Battery was dying overnight (but not while running) and would start with a jump. I replaced the alternator and the car started fine for over a month, sometimes rough in the morning but always started. Other day, car cranks but doesn't start. Tried rolling it down the hill for a different incline; still cranks, doesn't start. Battery eventually drained from cranking. Is the battery the likely culprit? If charging/replacing the battery doesn't work, what should I do next? It's a 1975 Chevy P30.