heres the deal my z is a 6 speed got a set of 4.11's out back with the stock rear and prolly more power than alot of that can take
on to the prob
when ever im at a stop and got to accelerate my car makes a loud BOOM sometimes more than once it feels like there is slack in the drive line and then it just catches and launches the car forward
it only does this at low speeds when acceling from a stop or acceling after engine breaking but once its going in 2nd or 3rd i can get on it with no probs it almost feels like some spline shaft some where is sliping and then catching after there is tension on the whole drive line
any ideas cause im out of them

 

Check your torque arm mount, and tranny mount, it sounds like one or both of those!