Napa kits are shown below. For the rear wheel cylinders, there are 2 types, one with a solid rubber cup, the other one has a ring type cup.
Mine were the ring type.
rear wheel cylinder kit 1 1/2 bore, ring type UP 147
master cylinder kit 1 1/4" UP 33
front wheel cylinder kit 7/8" UP 129


Mike
1955 Chevy 6400 ex-flatbed (no bed now!) sold September 2023
In the Stovebolt Gallery
1958 Chevy 6400 flatbed W/dump
In the Stovebolt Gallery
1959 Chevy Suburban Owned for almost 20 years, Daily Driver -- sold May 2016
In the Stovebolt Gallery

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