89 240 wagon- It's me again... I recentlycompleted an all around brake job-front and rear. In the rear I've now got new: discs, pads and calipers. Bled everything sucessfully. Now with the snow and ice, when I start it cold and the engine is running fast, I can back it up, apply the brakes, and the rear end keeps turning, pulling the car back. I can apply the hand brake and she stops. What should I look for, this can't be right, is it? I can hold the brake pedal down with my left foot and push the gas with my right and the rear end spins. Any insightwould be helpful. Thanks!! Dave

 

Each rear brake line has a pressure valve to prevent rear wheel lock-up. I would say they are doing what they get paid to do.