Do I need new fasteners to install this, or will my stock bolts work?

Stock bolts will work at factory attachment points. Verify bolt condition before install — if threads are stripped or heads are damaged, grab new hardware rated for suspension loads from your parts supplier.

Will this work with my 3-inch lift, or do I need something else?

This arm is tuned for the 2–4 inch range, so 3 inches is right in the sweet spot. The geometry is built to handle that lift height without excessive caster or camber issues.

Do I need an alignment after installation?

Yes. Any suspension component swap changes your front-end geometry. Get a full four-wheel alignment as part of your install process to dial in caster, camber, and toe.