shift kit/ cervo question

[Peg]

Reading how these improve the 4l60e. Mines got 210kms on it, should i rebuild before installing these?? id like to wait till summer to rebuild it.
tranny's shift from 1-2 is not as tight as it should be

[NEUMANNZZ]

do the vetter servo first. save the transgo hd2 shift kit for the rebuild.

[Peg]

Thanks. It looks simple enough to do myself too