A spring seat is provided for incorporation into a vehicle suspension system having an axle and a leaf spring. The spring seat includes a seat portion and a spring mounting portion associated with an upper end of the seat portion. The spring mounting portion is configured to accommodate a portion of the leaf spring and includes an upper surface. The upper surface defines a plurality of bores, with at least one of the bores being internally threaded and receiving at least a portion of an externally threaded mechanical fastener. Alternatively (or additionally), the axle may include a body, with at least one of the bores of the spring mounting portion of the spring seat being at least partially positioned directly above the body of the axle.