[David Hodgson]

Hi Greg, I haven't been on for a while so I missed this chat. I went through my stash of paper work and dug up the original alignment specs mine was set to, by a performance suspension shop here, when I first got it on the road. I have a strengthened '72 Crown chassis with Jag rear.
The caster should be adjusted by the large nuts at the front of the radius rods - like a early Falcon. This will pull the bottom arm forward for pos. caster. Like a HQ etc Holden you can also use uneven shims in the upper arm. this will shift the wheel rearward for pos. caster. You will need to adjust the Camber after the caster if using this method. Using a mix of these two methods can help centre your wheel in the arch if it is also an issue.

Front: Crown
- camber neg 1.25 deg
- caster neg 0.5 deg
- toe -in 2mm each side - 4mm total

Rear: Jag
- camber neg 0.5 deg
- toe -in 1mm each side

Seemed strange to have negative caster however i checked on some old Relim's charts and it is not uncommon. It behaved quite good on the road until i started experimenting with up to 3 deg camber and almost zero toe for track work, but was not happy on second rate roads.

Cheers Dave