Hey, me mate has a BA XR6T, 4 Speed Auto. Everytime he parks on a hill, his handbrake dont work, like at all! so when ya get back in the car and select dsay D or R it makes a bit of a clunk from the park pin however, tonight, it made a really loud one as it released and now he has a clunk in the rear mainly when selecting gears, and driving, like loading it up, clunks in the rear a few times, and also backing off does the same, also has a mad whine in the rear now. Please help!