The 155mm GMC M40 used the HVS suspension system, and spare track blocks for the T84 tracks are stowed on the hull front on each side of the gun travel lock. The drivers' cupolas can be seen above the spare track. The late-production Sherman features include the single-piece, sharp-nosed final drive and differential cover. Although the vehicle is wider than the Sherman tank, note that the final drive and differential cover is the same, leaving a space between it and the tracks.
This rear view shows the large stabilizing spade that steadied the vehicle during bombardment. A working platform for the gun crew is folded up behind the spade; this came down over top of the spade when the vehicle was ready to fire.