Order Today to get your equipment back to in top shape. Gravely / ARIENS Brush Mower Transmission Drive Chain These measure 32" each with 64 pins/rollers made with a master link for easy installation. These Premium chains are made rugged to ANSI Standards with hardened solid steel rollers and pins. With shot-peened sideplates for stress relief, longer service life and increased fatigue resistance. Replaces original drive chain with OEM Specs. Please see our other listings for different drive chains on hand or we can custom make one for you. Part # 04684700 - S4164WL Chain Pitch: 0.500" Roller Diameter: 0.306" Roller Width: 0.250" Pin Diameter: 0.141" Plate Thickness: 0.050" Tensile strength: 2100 Pounds Link count: 64 Total length: 32" Part # 04684700-HD - S42064WL Chain Pitch: 0.500" Roller Diameter: 0.306" Roller Width: 0.250" Pin Diameter: 0.157" Plate Thickness: 0.060" Tensile strength: 4000 Pounds Link count: 64 Total length: 32" If your drive chain is making a popping / clicking noise or sounds like it is binding when it runs, not running as quiet as it once did , the chain is worn/stretched beyond it's service limit and ready to fail. Order replacements now to have on hand for the inevitable. Please measure and verify the actual # of links or the overall length of your drive chain before ordering. If the chain you need is longer or shorter, contact us, we will make one especially for your needs.