race brake installation

MAXSIX

http://i574.photobucket.c
Joined
Dec 12, 2003
I bought aerospace racing front brake.My issue is they say I should cutting my spindle for the caliper bracket and they say tapping 3/8-16 but when I aline bracket against the spindle 1 hole can be aline but the other one be half of the hole in the spindle. Should drill the bracket and getting an oval hole?
 
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