cherrygxp

i was just about to order there kit but i didnt see a listing for the GXP etc. I am assuming then that i just order the one for the 97+ GTP? Do i need a trans pan gasket or is the one on there reusable? Also anyone running this kit what did you choose for the firmness since they say there are 4 levels of firmness, did you like it or recommend something else.

BuffaloSS

iTrader: (3)

There's a sticky at the top of this forum with tons of info:

https://ls1tech.com/forums/ls4-performance/628840-shift-kit-install-very-detailed-56k-go-watch-movie.html

cherrygxp

Thanks buff i was more interested in the ZZP one because i can supposedly make it firmer with different shims etc.

SSWS6

Yes order the one for the 97+ GTP. The ZZP one will work with all 4t65e trannies both HD and non-HD. I had a buddy of mine install it at his tranny shop. Definetly helped to firm up the shifts.

cherrygxp

SSWS6- which firmness level did you go with?

The Guz

iTrader: (8)

I have a shift kit in my 99 GP and went with a medium setting. No to aggressive but the shifts do feel firmer.

SSWS6

Medium on the 1-2 and firmer on the 2-3. My line pressure has already been increased via HP tuners so I didn't want to go too agressive on the 1-2.