There are three main "angles", called CASTOR, CAMBER, and KING PIN INCLINATION. Then add TOE IN or TOE OUT.
Bad news huh?
Well not in a REAL LandRover, which means them all up to and including the TD5s. Basically, if your Landy has a huge bloody big heavy old fashioned axle at both ends like a REAL Landy (not like a Disco3) then ALL the nasty angles are permanently established simply by bolting all the bits in the right places, and that's that.
About the only way to get it wrong would be to bend the whole axle, and while I suppose someone is bound to have done that, it can't be easy or commonly done.
Consider the back axle. The wheels sit with NO toe-in/out, NO castor angle, NO camber angle, and NO kingpin inclination. This is why back tyres on LandRovers last forever. The tyres run dead in line, upright, no fancy stuff.
It isn't quite so at the front.
They arrange it with CASTOR angle so that the steering tends to self-centre going FORWARDS. The TOP swivel is a tiny bit BACK from the lower one, and the effect is that the car tries to self-steer where it is travelling towards.
There is an excellent explanation here ....
T01
Toe-in or toe-out is set so that in normal cruising conditions the front tyres are running as nearly as possible dead parallel, thus cutting down tyre wear and reducing tyre drag. Assuming the axle isn't bent, adjusting Landy toe-in/out is easy to do, and no other angles can be disturbed in the process.
So there.
CharlesY