King Pin Wear
Symptoms
Vague steering, wandering on straight roads, uneven front tyre wear. Clunking over bumps from the front end.
Cause
The FJ/FC front suspension uses king pins, vertical pins that the stub axle pivots on, rather than the ball joints used on later cars. King pins wear in their bushings, developing play that translates directly to steering vagueness. Australian roads accelerate this wear.
Fix
Replace king pins and bushings.
King pin kits are available from specialists ($200-400 per side).
This is a moderately skilled job requiring a press to remove and install the pins.
Have it done at a workshop if you're not equipped.
While the front end is apart, replace the tie rod ends and any worn bushings.
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