2-Pk Electric Trailer Brake 10 inch LH Backing Plates Hub / Drum Kits (5 on 4.5) - Walmart.com
etrailer Trailer Hub and Drum Assembly Installation - YouTube
Trailer Parts Superstore - Hub Technical Information
12-1/4" x 5" Brake Drum Only - 8 on 7-1/2" Bolt Circle - 5/8" Bolt Size - For 12K to 15K Axles - Trailer Brake Drums - Hubs, Drums, Bearings, & Parts - Products