Ok so I have a problem with my FC, I think it maybe the rear end there is no noise or anything. When i put the car into gear and pull off it feel like one one of the wheels is bouncing or something. Then it'll stop once I pick up speed but at about 45-50mph I get a vibration that will go away when I let off the gas and then come back when I get back on it it comes back. So If you have any ideas as to what it may be please help. thanks

 

This could be a sign of a worn diff mount, the front one to be specific. A quick fix would be a pinion snubber. A quick search, and you will learn how easy and effective of a fix this is. Another possibility is missing/ broken exhaust hangers. Your exhaust will hit the brackets and such as you sharply rock back and forth. Ask me how I know

 

Wouldn't hurt to check the u-joints as well.