Car Shuddering in 1st gear :( HELP?!

[blkvute]

hey,

this is my first post on this forum.
I own a 2002 VU commodore Ute
it is fairly stock apart from 18" rims, superlow springs and headunit

on the weekend i put new shock in the car (monroe GT gas sports) and ever since i have been hearing a shuddering sound when accelerating in first. the shuddering does not happen when in any other gear even revers just from take off in first. i dont no what the problem is so i took it to the mechanic and he 'couldnt fault it'.

does ne one else have any ideas?

thanks in advance

[GenReaper]

Welcome to the forum.
If its auto its probably the centre bearing on the tail shaft.

[GenReaper]

Also dropping ride height pushes CV joints further into the shafts into worn areas which can also lead to shudder.