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smackzed 07-15-2010, 09:29 PM Anybody know the size of the nut for the fitting that goes through the frame for the flexible line from wheel. I lost my brakes today 'cause of a pinhole leak in the line. I got it off the wheel but I've tried a 15mm on the fitting that goes through the frame and it was too small. Tried a 5/8ths which seemed too big. Is it a 16mm? Are there 16mm fittings on a GMC? If it is I need to buy one but I don't want one if I don't need it. Diaric 07-15-2010, 10:30 PM are we talking front wheel? if i know what to look for i can go check smackzed 07-15-2010, 10:37 PM Yeah front wheel for sure. Thanks Diaric Diaric 07-15-2010, 10:49 PM the one on mine is 5/8 should need just to hold to unscrew the brake line from the back, then knock holding clip free smackzed 07-15-2010, 10:59 PM Oh it gets un coupled from the hard line? The Haynes manual says something about a backout wrench but I don't know what one is. Hopefully the light of day proves better than the fading light of dusk. Thanks a lot Diaric Diaric 07-15-2010, 11:10 PM ya, i'm pretty sure the hard line does the unscrewing, like a normal brake line. the flexible part is just clipped on, so it has a fitting to hold it smackzed 07-15-2010, 11:12 PM Thanks again Diaric 07-15-2010, 11:22 PM no problem , let us know how it goes in the daylight | ||