My brake pedal has been pretty soft lately, I originally thought it was the master cylinder because it would slowly sink when pressure was applied. I replaced the MC with a good used one and bled the system, but the problem is the same. Would I be crazy to suspect that one or some of the hoses are old enough to be swelling with the brake pressure?

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"spreading a trail of obnoxious where ever we go"
1981 300sd w/ 341,500 miles

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