If your garage door is groaning on the way up, sticking halfway, or the opener strains right at the top of the cycle, that's usually spring fatigue - normal for a door that's cycled for decades, not a sign of a defect. Doors on houses from the 1964 era are frequently on their second or third spring set already, and that's expected wear, not bad luck.
A door that drifts to one side as it closes, or that won't stay up when you disconnect the opener manually, points to cable or hardware issues rather than the opener itself - a distinction that matters because one is a $20 part and the other can mean a full spring and drum replacement.
Rust streaking along the bottom panel, especially after a hard winter, is common on original steel doors that have seen the region's cold and salt for that long. It's cosmetic until it isn't - once rust reaches the panel seams, that section needs replacing rather than patching. We'll always tell you which situation you're in before we start work, because guessing wrong on a repair costs you twice.