jophuss36

iTrader: (1)

I received my vigalanti tc for my 4l80e and it says to put an extra spring in the transmission pump.... Is this truely needed? What exactially does this do. I want to throw it together tomorrow, but am not sure if I'm ready to tackle taking the pump apart.

bluchev

if they ask you to do it, then i would. the pump mod is pretty straight forward, take your time and youll be fine. otherwise take it to alocal trans shop

TIM Z

iTrader: (12)

Call PI and ask for Terry, he can tell you for sure, dont talk to anyone else.

KySilverado

iTrader: (7)

I think its to increase TC clutch pressure. I did it.

allballz57

iTrader: (13)

you NEED to do the mod,and it is to increase the TC clutch apply pressure.

jophuss36

iTrader: (1)

K it's done. It wasn't as bad as I thaught.