Drive shaft angle????

[Lee]

Right, i have heard that the angle of the drive shafts have a massive effect on the way the car handles. How?? can someone explain, some yank was going on about drive shaft plunge and you want as little as possible on rutted tracks, but i am not sure why it would help and what to alter to change this, i thought the x-6 was the only car with an adjustable height gearbox or am i missing something