I had some braided ones that did not leak but always worried about them. Finally broke down and bought some $120.00 dually stems no worries since. If you want to keep the extension type try a drop of blue lock tight on each one.
John & Carol Life members
01 31'Sea View single slide, F53 V-10 with 134,000 miles and counting.
2012 Jeep Liberty Smi brake system
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KF6HCH