Same high quality components, capacity and specifications as the hydraulic Power Lift Transom Jacks, above, but adjust manually. Rather than by an hydraulic pump, height is adjusted by turning a 1 1/8" nut on the bottom or the top of the jack with a socket wrench. Then tighten the four side bolts with the same wrench to 100 FPT pounds each. Engine Capacity 300 HP V-6 or smaller, standard BIA hole configuration Actuating Mechanism Mechanical screw adjustable from top or bottom Dimensions 18 1/8"W x 15 1/2"H - 5 1/2" setback - 5" travel Material 6061 T6 aluminum with stainless hardware Weight 32 lb. Warranty One year