How hard is it to replace a rear brake line on a 95 Ford Ranger? It's leaking between the junction box that sits on the rear end and the wheel. As far as replacing the part it looks simple. Unscrew the fitting, remove old line, insert new line and tighten fittings. That's the theory but what is it really like? Should I expect the fittings to be rusted to the point they break before unscrewing? I've never replaced the fluid so I'm guessing it attracted moisture and that's what rusted the line to the point it broke. Can one person bleed the air out of the line when you replace the fluid?