When Frisbee sneaks out of the hotel room, there is a noticeable jump cut - the lighting in the dressing mirror darkens.
Charles Martin Smith's character says he's on a 15-day pass. In the Army, this would be considered a leave. Passes are almost always for two or three days. A pass is for short periods of time. Less than a week.
Drum brakes on any make of American car cannot be repaired without taking off the wheel and brake drum.
And repairing a wheel cylinder would also require brake fluid.