Cascade Crew

minijensen

would i have to drop the whole trany to swap out the servos?

91RSVert · Posted: Mon Feb 13, 2012 12:29 pm Post subject:

I think its located on the pass side. And that you dont have to pull it.

Twilightoptics · Posted: Mon Feb 13, 2012 12:30 pm Post subject:

chevymad · Posted: Mon Feb 13, 2012 5:39 pm Post subject:

Actually.. i'm confused by your terms. kickdown and servo dont go together.

The servo for the band is on the side like everyone is saying. You can change it easily.

The corvette kickdown valve (tv valve sleeve, its the part that keeps the trans from kicking down into 3d at wot) and the corvette boost valves are on the inside of the trans. They're fairly easy to change as well, once the pan is off. I cant remember if the valve body has to be dropped or not, but thats still not difficult.

91RSVert · Posted: Mon Feb 13, 2012 5:59 pm Post subject:

Ive not heard of the kickdown valve.

Boost valve is the other item I was trying to think about quietly. Ive read its not that hard to change either.

That being said, I have never changed either.

chevymad · Posted: Mon Feb 13, 2012 7:08 pm Post subject:

It's not really called a kickdown valve. But that is its function. Has a groove in it that dumps fluid when the throttle hits a certain point. That is what makes an fbody trans shift down to 3d wot, but not a vette. The groove is different on the vette tv sleeve.

The servo is just a piston that applies pressure to the band. The vette servo has a bigger piston = more surface area = more pressure on the band.

The boost valves up the hydraulic pressures. Higher pressures = more clutch friction of course.

minijensen · Posted: Mon Feb 13, 2012 7:30 pm Post subject:

sweet thanks guys now i need to get me a corvette servo piston

izcain · Posted: Tue Feb 14, 2012 2:06 pm Post subject:

I will look when I get home but I think I might have one amongst the wreckage