u/Amber2718

So my 1997 Jeep Grand Cherokee 4.7 L has always had brake issues I've had it for a while. But within the last 6 months both rear calipers have locked up and I don't understand why, is there like something wrong with the line going to the back wheels or what. They're not rusted and they look fine it's just I don't know. I've already replaced the front left caliper like three times in the last 10 years