Bay Area Y2K_Z28

So i just bought my 2000 z28 M6 & i noticed when i ease off the clutch in 1st gear my shifter shakes & the rest of the gears are fine theres no shaking... What's wrong? do i need a new tranny mount? i seen the samething hapening on my friends 02 z28.

Thanks

LS1W66

When my trans mount went bad I could tell by putting the car in 2nd gear and accelerating and decellerating a few times while leaving it in the same gear. On acceleration the shifter would torque almost 2" towards the passenger seat.