This complete left‑side (driver side) brake assembly includes a 5‑lug, 5×5.5" bolt pattern drum and a 10" electric backing plate for 3,500 lb trailer axles with standard #84 spindles. The drum comes with bearing races pre‑installed. The kit includes: inner bearing (L68149, 1‑3/8" ID), outer bearing (L44649, 1‑1/16" ID), 10‑19 grease seal (1.71" ID), dust cap, and five lug nuts. This assembly is for the left (driver) side only. Compatible with Dexter, AL‑KO, Lippert, Axis, Quality, and other axles using the #84 spindle configuration. Ideal for replacing a failed brake assembly or converting to a different bolt pattern. Brakes are 10" diameter (shoes included in backing plate). Always verify spindle dimensions (inner bearing journal 1.37", outer 1.06", seal surface ~1.73") before ordering.