Replaced Shoes Pads , Cylinder on rear brakes in my 1999 dodge ram 1500, now is leaking fluid bad and still have no brakes

If the wheel cylinder is leaking on a drum brake system then the cylinder that is leaking must be replaced and bleed the brakes. Sometimes when the shoes are replaced on of the plungers in the cylinder can be push out too far and cause a leak, most of the time this causes damage to the seal.

Also don't forget to adjust the drum shoes.