hey guys, took the car for a ride today, as soon as i hit about 110kmh i can start to feel tight vibration and also when the car drives over small cracks in the road in feels like something is loose in the rear suspension you can hear and feel a very slight knock noise over every small bump...any ideas?

not sure if the problems are connected, but the whole rearend and suspension is brand new...

vibration - tire balance,alignment,drive shaft,rear diff lube,bent axle,damage treads,bent wheels,torque converter issues,lock up,engine isssues, fuel pump

noise every bump - loose exhaust hanger,e-brake cable,dirt in the drums,something moving in the trunk..lol