They feature all metal bases and bushings or bearings where other brands use plastic bodies and no bearings. Single-speed, plain-top winches use Delrin® bearing sleeves. Gear ratio-1: 1:1 Power ratio-1: 7.5:1 Fastener circle (in): 3-9/16 Fasteners (FH) (in): 4 x 5/16 Drum dia. (in): 2-11/16 Base dia. (in): 4-1/2 Height (in): 3-9/16 Weight Alum. (lb): 2.4 Weight Chrome (lb): 4.6 Line entry height (LE) (in): 1-1/2