The answer is to lop a bit off the axle and bolt it back with a shim underneath.. But I really think you're just band aiding a flawed rear beam setup, and those that have done it already, just did it because they could without backing it up with any real data. The truth is, only a very small percentage of Starlets aren't road cars, so there simply isn't enough knowledge available to say, yes this absolutely works on track, or no it doesn't. So it really is a case of experimenting and figuring out what does and doesn't work for you.. All I know, is that my car handles really well, is fairly planted and very difficult to get it out of shape in the dry. It does suffer from a little bit of understeer, and I'm hoping with the combination of aero, a LSD rebuild, ARB adjustment and some alignment tweeks will help. But at the end of the day, it's still a FWD car, with the engine and gearbox slightly for of the front axle so it will always understeer a little. Biggest thing any of us need, before we start fucking about underneath is seat time in the car. With coilovers, brakes and ~160whp there's not much that can keep up with a well driven EP82.