Hi mate,
spacers at the top of the caster block i.e front hub furthest up = less steering
spacers at the bottom of the caster block i.e steering arm furthest down = more steering
Effects of front diff oils
Thicker:
•
Decreased steering response.
•
More stability under braking, but less turn in.
•
Better on power steering at corner exit.
Thinner:
•
Increased steering response.
•
Less stable under braking but better turn in.
• Car will understeer on power at corner exit
Effects of rear diff oils
Thicker:
• Car understeers slightly at corner entry, but makes the car
more difficult to control at corner exit (powerslides).
•
Increased on-throttle steering.
•
Better on high-traction surfaces.
Thinner:
•
More stability mid corner and corner exit.
•
Understeer on-throttle.
• Better on low-traction surfaces.
Hope this helps
Craig Collinson