I seem to re-call I had to trim mine a little (55 2nd Series). It won't hurt to trim just enough to give you a 1/16" gap. Those "nubs" are for locating and holding the hose end to the caliper. There isn't any passages in that area of the caliper.


1955 Chevy 2nd Series
1931 Chevy Deluxe 5-window Coupe
1950 Packard Club Sedan