Malcolm M,
Don't know but I would think that it has to do with weight distribution. If when you applied the brakes and there was equal distribution of weight on the rear wheels as the front then there wouldn't be so much of a problem. With the engine in front and an unequal amount of "tread (print) pressure" in front than in the rear, then the rear end would tend to lock up and break loose. That is also why the front bores of the wheel cylinders are larger.
I hope this helps and best wishes,
Charlie
BTW: I was going to mention your choice of forum but decided not to. I have no standing to do so.
