DARKSOUL SPRING COLLARS FOR BAJA SHOCKS SILVERDarkSoul Shock Spring collars. These shocks collars are designed to give a better grip for adjusting your spring pre-load on Baja 5B, 5T, 2.0, and RTR. An o-ring is fitted inside of the collar (like stock) to give a firm lock on the collar to prevent it from backing out of adjustment, but we use a slightly fatter o-ring that will have just a bit more lock on the threads. Available in silver or black.