Thanks for all the great advice. I will replace the flex lines and check the free play in the plunger rod. I do have the return spring installed. Regarding the MC rebuild. Since I have the kit I thought I would give it a go. Here is a photo of my rebuild parts lined-up in order of install into the b...

UPDATE I did use the cam adjusters (top and bottom) to adjust the shoes per Charles (from Mseriesrebuilder) write-up where he explains to use the view port on the hub to visually adjust the top and bottom of each shoe so that they are visibly just shy of touching the hub. I thought that was a great ...

Just bought my 1954 M37,very original truck. Previous owner told me that one brake cylinder was sticking. I put truck on jack stands and found right front wheel hanging-up when rotated. Installed two new front wheel cylinders and flex lines and bled brakes - everything turned free. Drove three miles...