Incision Brass Shock Lower Spring Cup (2)

They help me a lot, you don't need to much to do. In my case I'm not using the Vanquish springs come on the Phoenix portal, I using another set is from MST allow me to have more drop, without compromise the performance. You need to use some pliers to shrink a little to make the fit more tith. To put inside you need to unscrew the collar to allow the pliers for the shocks, then you can go a put collar where you want again, but you will never lose any springs holder, and possibly I can recommend this even for the Traxxas Trx4 1/10