I ran a H145 alloy carrier diff in the 1000 sedan for 5 years it started life behind a tired A10 then a second hand A12 and finally finished behind an A14 it outlived 2 gearboxes and finally gave up after years of testosterone induced abuse and the addition of 185/15's too much for a little diff.
Previous to it giving up the ghost it provided whine free motoring with out any probs

As others have mentioned as long as you don't abuse them they're light, strong enough and shouldn't make any noise, of course if you hammering round, flat changing and dumping the clutch then they won't last and the steel carrier 1200 one is the go!