Modulator Valve for my tranny?

[89oldscutlass]

I read a thread that someone on here was making custom modulator vaves for our cars or doing somthing to them to change the way they shift. I was just wondering who it was. Id like to change my shift points. On my old monty you can set the shift points on it manualy.

[4spdz34]

vacuum modulator only controls shift firmness. and you can get an adjustable one for 15$ .

[89oldscutlass]

Your shift kit is what controls your shift firmness and your modulator valve controls your shift points. Thanks for the info though you was right you can get a ajustable modulator valve for our tranny.

[Guest Anonymous]

[scorpion_x9]

I have a 4T60E and from my experience the vacuum modulator adjusted firmness and the computer controls shift points and buying a shift kit for it does exactly what an adjustable one from your local parts store will do. B&M Makes one for the 4T60E and i think it goes for the 4T60 as well, but it's a waste of money when you can buy an adjustable VM.