1980 lowrider wilwood brake question
 

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I bought this bike from my girlfriends cousin. When he got it it had a wilwood rear caliper. Long story short the brake pad retainer pin broke and I lost one of the pads. I'm trying to figure out which pads I can use in this caliper, and where I can get the pad retainer pin.

The part number for the caliper is 120-0269LP but when I search this caliper I get no results.

Call Wilwood directly, I've had very good customer service with them both phone and email.