I have changed all my rear suspension ball joints and think I have got it set up wrong can anyone tell me what castor,camber and toe in it should be set at.

Front

1mm combined toe out.
145mm ride height
tyre 195/45 r16 22psi
ARB 2 from fully hard

Rear

3mm combined toe in
-1 camber each wheel
160mm ride height
tyre 225/45 r16 24psi
ARB fully soft

You need to start by setting the inboard ball joints to 39mm from the threaded tube to the centre of the ball joint.

Then depending on what gearbox you have, measure from the gearbox [where the driveshaft enters the gearbox] to the centre of the first bolt on the bottom ball joint.

PG1 Gearbox [1800 VVC] 343mm nearside, 625mm offside.
R65 Gearbox [1400] 375mm '' 560mm ''

You can then set the camber and toe-in to what you prefer.

I run 2mm combined toe-in on the front [I tried toe-out,didn't like it, and I haven't got anti-roll bars], -1.5 camber and 4mm combined toe-in rear.
Tyre pressure 17psi front, 21 rear [and I'm going to try going lower].

I've got a set of gauge's and slide plate's, so I'm always playing with settings.

Good luck, have fun setting up.

Bob S.