Complex sentence: Between 1978 and 1983 the locomotives were rebuilt to EMD G22AR specifications as the DC class, with a new cab and new diesel engines; five were reconstructed at Hutt Workshops near Wellington, the other 80 at Clyde Engineering Australia.
Split into simpler sentences: Between 1978 and 1983 the locomotives were rebuilt as EMD model G22AR, the DC class, with a new cab and upgraded engines. Five were reconstructed at Hutt Workshops near Wellington, the other 80 at Clyde Engineering Australia.