Caster? Camber? What the hell are they, we hear you ask?
Good question, and the answer is that nobody really knows. it's like asking how magnets work, or how the hell do bees even fly? Science can't give us an answer, we just all accept that they're important parts of our wonderful planet - and caster and camber are the same. The details don't matter, but you need them in the right numbers at the right place.
Sounds vague doesn't it, but trust us, the black art of suspension design, while being about as exciting as having your weird uncle explaining at length the intricacies of corporate law at your next family BBQ while you're just trying to hang out with your teenage cousins while they smoke "university cigarettes" behind the pool shed, it's still heaps important and that, especially if you like your vehicle to stop, steer and do sick mainies in your local town on a Friday night.
So yeah, given you're currently online looking up lower control arm bushes, there's a fair chance you're not doing it for shiggles, and yours are probs in need of replacement - and we've got just the scratch for that itch. We can't help with that other itch though, you need to see a doctor for that one pal.
Anyway, these units from SuperPro are the business. Made from polyurethane and pretty much guaranteed to steal your girl, they maintain correct camber and caster and will have your Amarok riding smoother than Vin Diesel's head - another thing science has no answer for while it remains a thing of beauty.