I own a '90 Dodge Dynasty and have put insane amounts of work into it (it is definitely a true lemon.) I just had over 900 bucks worth of brake work done to it, new radiator, valve cover gasket, shocks, fuel injector, etc over the past year that I've had it. I finally thought I had everything fixed that needed fixing (according to a handy list provided to me by Firestone) and a few coworkers drove my car and claim I need a new CV shaft.
There's a bit of rattling under my feet by the floorboards as I drive over 35 and the CV shaft thing was suggested as the problem. I've looked everywhere online and can't find exactly what this CV shaft thing is, or if it's even possible that's what the problem is...or about how much replacing them/it would be. I'm completely car illiterate and have been screwed out of thousands fixing this stupid car over the past year, so any help would be great. Thanks guys.