tokar

My rear suspension sags when I hook up a trailer. I purchased two v8 JGC springs to put on rear as I read I should get, but now do not recall if they are a bolt in replacement or do I have to do something else to make them fit. My mechanical abilities are restricted due to lack of shop space, tools, and confidence. Example...replacing rear shocks...no problem......Replacing front struts....I want help. I have heard that some have removed the pigtail but I think I read it isn't required to remove. I do not want to get half way ready to install only to find I should have done .......... before getting to the point of putting them on the car. Is there a video link to view someone doing this installation? Or can someone give me very detailed instructions? Thank you. Tokar Vancouver, BC Canada