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anyone ever changed the left rear brass brake block before? i know the long brake line from the front runs into it along with the RR steel brake line and the LR flex hose. I broke it while tightening up the new flex line :-( i got a new one on the way, is there anything more to it than just unbolting those 3 lines?
that's about it. make sure everything is clean and straight; get all of the grit off of the existing fittings. when you tighten down the first time, the new brass fitting will get an impression on the inverted flare that stays forever. a badly flared tube can mess up an inverted flare fitting or not seal.