markclark1556
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The wheel cylinder housing is stamped Girling 304180 and it contains(in descending order)1)a flat bottomed piston that is covered by a rubber dust cover,2)a rubber seal that is flat on the side facing the bottom of the piston and concave on its' bottom side,3)a metal seal support with a convex top that compliments the rubber seal's concave bottom 4)a metal spring. The set up is almost like the picture on page M.1 in the "green shop manual" BUT Here's the rub - the manual is showing a front drum brake but my wheel cylinder is from a rear wheel of my '63 BJ7. The Moss Cat. (Fall-Win., 2011)pg.82 wheel cylinder repair kit (part 583-020)only works if your wheel cylinder piston has a nipple like protrusion on it's bottom. My piston has a flat bottom! I cant use the front drum brake wheel cylinder repair kit sold by Moss because my bore is 3/4" and they have 1" and 7/8". I might try the BN1 repair kit (pg.82, #513-015), it shows a rubber seal w/a concave bottom and a seal support with a convex top- I just dont know the bore size. Anybody out there ever had to deal w/this? If so, how did you get the right parts to rebuild the wheel cylinder and complete the brake job?