how much does 1 shim change rear wheel camber by

 

A .020" shim changes camber ¼ degree.


Cheers
DD

 

according to a specialist tracking machine the left side is neg -0.16 and the right is neg -0.19.
I removed the drive shafts yesterday and there are no shims fitted, how many do you think are missing?

 

Book says 1.0 - .5 neg. but if you have no shims to remove you can't get to that figure anyway unless the shims are behind the brake disc.
What is the 1998 xjs on the printout?

 

that's a very good point you have raised, that 1998 xjs (I bet their computer doesn't go back to 1984) so the figures mean nothing more than a number,
as I have had the car twenty years and I have corrected the fronts neg camber, I think I will leave the rear alone

 

its a fairly recognised modification to remove all the rear camber shims on an XJS , this give a more positive feel and more confidence in the rear end when cornering

BB

 

cheers BB
their may well be shims behind the discs for centralising them, its a long time since I did them and would have centralised them def,

 

There are two sets of shims, one between rotor and output shaft centralizes the rotor ithe calipers, one between half shaft ant rotor sets camber.
At those camber settings I'd leave it, but if you were keen, you could possibly check to see if caliper and disc relationship is OK and if not, remove shims from the differential side of things.
Otherwise, you could have the half shaft yokes machined down a little on their mounting faces to allow adjustment shims to be used?

 

I agree, leave the rear camber alone. You are very near straight up and down, with just a slight bit of negative camber, this will help rear grip. It is not enough camber to be a tire wear concern.
You are a little heavy on negative camber on the LF, but not enough that I would worry about it. Run it as it is, and enjoy it.