MACK321 Posted March 9 Share Posted March 9 (edited) Hello I have a 2011 Mack CXU613 I'm having a problem when I brake bobtail or driving empty my passenger rear axle locks up making it very hard to stop and I don't hard brake just a little tap to the brake makes the axle lock all my speed sensors are new brakes are new I replaced the brake chamber for the rear axle as my mechanic thought that was the problem turned out not to be anyone have had this issue before? Edited March 9 by MACK321 Quote Link to comment Share on other sites More sharing options...
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