The "nuts & bolts you didn't touch" are supported in bushes that join the A frame to the chassis, yes they do wear but not anything like the bushes under the differential. As SM25T mentioned check your radius arm bolts, but these tend to make a noise under acceleration rather than cornering. The clunk you mention could be the half shaft walking out of its bearing, very common on an Ital live axle. Stand at the side of your car grab the roll bar & vigorously rock the car sideways a couple of times in quick succession, this will induce the clunk caused by a loose half shaft bearing if you have one. Olly Put live axle clunk into the Google site search in the red band at the top of the page