Libra New Trailer Leaf Spring-5 Leaf Slipper 3500lbs Capacity for 7000 Lbs Axle -20039 One spring, 3,500lbs capacity , for standard 7,000lbs trailer axle Free length from center of eye to end of hook: 26-7/8", Free open: 3.19", width of leaf: 2", 5 leaves, 9/16" bushing dia It will replace 72-32 / 1203T3 / LIB-501-SH / UNA232 / 125023 / 9150000 (different SKU# but same spring)