Interesting. I only have one Bear takedown, and it's an older model. No bushings in the limb alignment holes. In fact, the holes have started to elongate a little. I tightend one up with a little epoxy. This set of limbs doesn't squeak, but another set I had did. I put a little mole skin on the latch where it presses on the limb when closed. That stopped the squeaking on that set of limbs. For other alignment mechanisms, I've heard of using string wax on the pins, or vaseline or even grease to stop the squeaking. May be worth a try.