The first thing is to make sure that the shoes are up as close as possible to the drum. The next thing is to make sure that the MC linkage is adjusted properly. If it isn't, the front port might not be getting the fluid refilled when the piston moves back. I am not familiar with these dual masters but I wonder if there is a residual valve in the front. If not, it may be sucking air in when the pressure drops and the pistons move back in the front cylinders.
Last edited by truckernix; 03/28/2011 10:43 AM.
