What Are Backing Plates and Do We Really Need Them?

Do I need new rear drum brake backing plates?

2 different 10x1 3/4, 8 3/4 backing plates?

2-Pk Trailer Brake Self Adjusting Backing Plates 12 2LH 2RH w/4 Drum 6 on 5.5 : Automotive

Are brake backing plates necessary? - Quora

Lake Country Rotary Backing Plate - 5 - Detailed Image

Dorman 13867 Dorman Drum Brake Backing Plates

Stock 94 Pickup Backing Plates Opinion - YotaTech Forums

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Drotor Backing Plate Kit

Lake Country - Flexible Backing Plates DA Polishers