A gear housing includes a first receptacle, a second receptacle, an elongated receptacle, a connecting portion, and a mounting arm. The first receptacle is configured to house a worm wheel. The second receptacle is configured to house an output gear. The elongated receptacle is configured to house a first portion of a shaft of a drive assembly. The elongated receptacle extends at least partly alongside the first receptacle and the second receptacle. The connecting portion is connectable to another housing that houses a second portion of the shaft of the drive assembly. The mounting arm extends outward from the first receptacle. The mounting arm is disposed between circumferentially adjacent fastening components along a periphery of the first receptacle. The first fastening component is disposed at a juncture between the first receptacle and the second receptacle. The second fastening component overlaps a part of the elongated receptacle.