The rebuilt engine still retained its additional axle, resulting in a more spacious cab for the driver and fireman. The tender was not rebuilt, but was modified slightly at the front so that the ends of the curved side sheets now finished  apart; it was also given streamlined plating at the top (which was removed again in January 1938) and a longer coal chute.
The refurbished engine retained its supplementary axle, leading to a more expansive cab for the driver and fireman. The tender was not renovated, but underwent minor modifications at the front, resulting in the ends of the curved side sheets now being separated; it also received streamlined plating at the top (which was subsequently removed again in January 1938) and a longer coal chute.