every time im in my car and im doin about 45 in 4th or 5th and i let off then gas and let off quick it makes this knocking noise. i put it up and a lift and the whole drive shaft was loose and its really annoying. it also knocks sometimes when i take off in first.
but what do you mean by "the driveshaft was really loose"? its normal for the DS to be able to rotate like 1/4-3/8ths inch, thats just the play between the gears