front brakes DRAGGING

"Remanufactured" master cylinders are junk.

There is no threaded (or other) adjustment on the end of the pushrod -- not with nonpower brakes. And an adjustable pushrod is not needed; every single vehicle Chrysler ever built with nonpower brakes came with a non-adjustable pushrod and they worked (and still work) fine.

A drum brake master cylinder will have a residual pressure valve in both outlets. A disc brake master cylinder will not have a residual pressure valve in the rear outlet (which serves the front disc brakes). If you have an RP valve in the line to the disc brakes, they will drag! Please help us help you: post details about the exact master cylinder you installed. What is the Raybestos number you've been getting and installing?