The rears on my 6 are acting strange. The left Rear seems to lock up very easily causing the car to vear left under heavy braking! Now I mknow all about rear mounts etc but I'm nearly sure that its braking more on the rear left than the right. With the car jacked up both wheels are braking but on track its very different and sometimes very dangerous! I was thinking of stripping out both calipers and freeing them up but I don't think thats the problem. Could the brake pressure balance thing on the shock be dodgy?

What to look out for?