im getting ready to install a complete suspension in my car and have a question about the coil over install. I have the tokico blue struts and the upr coil over kit. My question is about the strut itself. the instructions say to remove the dust cover collar that is installed on the stock strut. The tokico struts have the same thing, but if i remove that cover will it mess up the operation of the strut? I just need to know if that collar keeps the top of the strut together or not? thanks in advance.