Nope, hardtop, convertible and Nomads used a shorter windshield.
Sedans and regular wagons used a taller windsheid. Take it from someone who has first-hand dropped a tri-five hardtop windshield into a sedan (wrong windshield was delivered by accident) there's a big difference (about 4", IIRC).
Actually there are four different windshields between 55 56 and 57 hardtops and sedans.
55-56 sedans are all the same, 55-56 hardtop nomads and convertibles are the same, 57 sedans are all the same (but different from the 55-56) and 57 convertible hardtop and nomad are the same.
The 57 hardtop/conv/nomad windshield is 5/8 of an inch shorter than the sedan.