Replacing my OEM blades with a SHelic cutterhead. One thing that has to be done is to remove the chain tensioner. In order to do so, the tension spring must be released. I discovered mine was broken. Has anyone replaced the spring before? All that the Dewalt site site shows for the part is Spring, no other dimension or descriptions. THinking about ordering an assortment from Amazon b/c DW will take a week or so to ship. Any suggestions on a spring to order? It is approximately 1" long. TIA