The CMA-347 is the only true vibration-dampening accessory on the market today. It is a unique design that soaks up vibration above the mount connection point. Can be used with any 1 1/2" NPT extension columns and includes two sets of springs for different weight mounting options.
CMA-347 Vibration Mount Includes:; 1 x CMA-347 Top; 1 x CMA-347 Bottom; 3 x WEIGHT, 2.5 Pound; 3 x DAMPER, Sorbothane, Stepped; 12 x DAMPER, Sorbothane; 15 x WASHER, Flat, 1/4"; 6 x SPRING, Small; 3 x SPRING, Long Medium Gauge; 3 x SPRING, Long Heavy Gauge; 6 x BUSHING, Vibration, Stepped; 3 x NUT, Nylock, 1/4-20; 3 x BOLT, Hex Tap, (1/4-20 x 4"); 3 x WASHER, Fender, 1" OD; 3 x NUT,Nylock, 3/8-16; 3 x SCREW, Cap, Hex Head, (3/8-16 x 1.5"); 1 x Key, Hex, 5/32"