SPARE SPRINGS (GOLD&SILVER) FOR FRONT/REAR DAMPERS TXMSF/R/SPA Suitable For TRAXXAS-1/10 4WD MAXX MONSTER TRUCK -89076-4,TRAXXAS-MAXX W/WIDEMAXX MONSTER TRUCK-89086-4 Packaging Includes: Gold Spring 2pcs Silver Spring 2pcs Original Name / Part No.: 8966 (Front) / 8967 (Rear) Part location: Front or rear dampers Product major functions & usage: Absorb impact and helps the damper to work as a cushion for the vehicle. Is this part adjustable? If yes ??how and why/purpose? YES How: Rotate the top cap of the shock. Purpose: Adjust the hardness of the spring to suit drives on different landscapes. Major advantages of upgrading to this part/product : 1. Made with spring steel material for sturdy use, compressive and impact resistant. 2. Gold Spring length: 85mm. Outer diameter: 27.2mm. Inner diameter: 23mm. Coil length: 2.1mm (0.3mm thicker than original). 3. Silver Spring length: 85mm. Outer diameter: 26.8mm. Inner diameter: 23mm. Coil length: 1.9mm (0.1mm thicker than original). 4. Gold and silver color bring a contrast visual effect. Other special notes and comments: Suitable for Traxxas original dampers and GPM Racing dampers. Suitable Model: TRAXXAS-1/10 4WD MAXX MONSTER TRUCK -89076-4 TRAXXAS-1/10 4WD MAXX W/WIDE MAXX MONSTER TRUCK-89086-4