TRP Double Eye Spring (6 Leaf) - 3,500 Lb Capacity - 24-7/8 Inch X 1-3/4 Inch - Single 6-Leaf Trailer Spring 3,500 lb rating per spring 24-7/8 inch x 1-3/4 inch wide - Free Arch 3.38 inches Equipped with plastic bushings - Inside dimension 0.562 9/16 mounting holes