The tracking on my Disco1 is 1mm toe OUT
This is Track Rod, not Drag link - yes?
(The bar between the wheels, not steering relay to sheels)
What I have is a bit of hollow tube, with some threaded bar inside it.... and a nut on the threaded bar to give me a measure I can adjust.
I set the length of the bar to be just brushing the rim of the wheel as close to the track rod as I can get.
I then use that bar between the rims as close to the drag-link as possible.... and there should be about a 1mm gap between the end of the bar and the rim.
If it helps to understand WHY toe out verses toe in.... its like this:
In a Rear-Wheel-Drive car - the car pushes the axles forward, and because the tyres are outside a pivot point, the friction on the road will drag them backwards, pivoting about the king-pins. Therefore you need to start wit the tyres pointing inwards, so when they get pushed backwards they end up parallel.
Likewise, in a Front-Wheel-Drive car, the tyres pull forwards, so pivot around the king-pins, and then drag the car forwards. By starting with the tyres a little back on the king-pins, the pull forwards will line them up.... and you'll have perfect tyres again
In a 4x4, the tyres all tyres should pull evenly, so the fronts will only swing forwards a wee smidgin... so one a wee bit of toe out is needed.
