sorry, a bit late on this one. Below are the kits I used on my 58 6400. 1st # is Napa, 2nd # is Raybestos (Rock Auto). I also have brake hose #s but, 55 and 58 are different
rear wheel cylinder kit 1 1/2 bore, ring type UP 147 WK147
master cylinder kit 1 1/4" UP 33 MK33
front wheel cylinder kit 7/8" UP 129 WK129
