As I said in another post the front caster isn't adjustable because it's optimised for the limitations of the Sierra upright. It can be made adjustable by using slightly wider brackets and moving spacers from in front or behind.
Only mess with the caster if you
really know what you're doing - please
The rear has no caster, it doesn't need any - caster is a property of steerable wheels.
The rear toe can be adjusted by using shims either in front of or behind the hub (between the hub and the upright plate) or by using 3ge's adjustable whizzo rear wishbones.
Settings? well I'd start with -1 degree negative camber front and rear and the fronts toeing in by half a degree with the rear wheels set straight ahead. If you're going to adjust the suspension
change one thing at a time If you make multiple changes you won't know which has made the improvement or made things worse and if it has made things worse you only have one thing to change back to get to square one and it may be an indication that you need to adjust in the
opposite direction.
Cheers
Chris
