Im just curious on how an LT1 56 "pull" style pressure plate works. It seems intriguing to me how one style pressure plate is completely opposite of that from other pressure plates. And whats the word on this "converting" to a "push" style pressure plate? Is this true? Is that actually possible? Also to they make a hydraulic throw out bearing for the pull style or for the throw out bearing for a push conversion type? Just hungry for knowledge.. thanks

 

Clutch fork pivot is a T stud bolted to the front plate of the transmission, when the slave pushes forward on the fork the tob end pulls the tob towards the rear, the tob is U shaped and the fork is tucked in the U groove allowing it to pull.

 

Have a parts store pull a new clutch off the shelf to look at. They work fine.

It can be done. I have mine mechanical linkage with a third gen T5 clutch. It's possible to use a hyd. throwout bearing to do it too.

The length of the pilot and spline sections of the LT1 T56 and throwout bearing support sleeve are pretty darn close to the T5 parts.

 

Ur not telling me anything i dont already know... im talking about the pressure plate it's self. Thought i specified that?

 

I'm not sure what you are looking for. The pressure plate side of the fork pulls on the tabs at the top of the release bearing.

 

What in the t56 design makes it operate the opposite of a common pressure plate?

 

[quote=ChevyRS-305;5375195]What in the t56 design makes it operate the opposite of a common pressure plate? I think your confusing pressure plate operation with slave cylinder operation. The difference is in the type of slave operation, push or pull type(LT1 differs from LS1). Pressure plates should be the same.

 

No no no...not the slave cylinder... the fork itself pivots differently inside a t56 which in turn pulls the T/O bearing instead of pushing it... which in turn means the pressure plate needs to me a different design rather than the common push design we see in most common cars. My guess is the fulcrum points are reversed maybe???

 

The belleville spring (the steel which makes up the "fingers" of the pressure plate is different, yes. In a push clutch, the outer edge of this spring lifts the pressure plate face and inboard of that, it's attached to pivot off the p.p. housing. In the Valeo pull style, the bellevill is outboard attached to the p.p. housing and inboard of that, it lifts the pressure plate.

The fork is pushed from the rear, pivots on the underside of a tee and pulls the throwout bearing towards the transmission.

Also, because the sprung disc hub goes forward instead of aft, it is sprung opposite of a push clutch.

 

Yes! Thats exactly what i was looking for. Thank u so much.