I finally got started on my 4l80e rebuild. I'm to the point of rebuilding the Direct Clutch assy. I have a Transgo HD-2 rebuild kit and I replaced the springs on the direct drive assy, but the Transgo instruction specify to make sure and use a wave or cushion plate with their kit. My trans had already been rebuilt for performance. It had no wave plate and stock return spring, but instead had additional composite friction plate.



SO.......
Which is better?
A direct drum assy with 6 sets of plates, stock springs, with no cushion?
OR
A direct drum assy with 5 sets of plates, Transgo springs, with a cushion plate?

It seams to me the additional plates would have a better 2>3 shift, but the heavy duty springs would have a better 3>2 down shift.... sound right?

 

My trans is stock with the Transgo HD-2 **** kit. We completely disassembled the factory clutch packs, and installed the Transco springs. Seems to be working well with 5 so far. Probably take a **** 1st pass with the new engine. All the built 80E's I see have 6. I would like to know too.

 

... if I remember correctly I used the Transgo springs, wave plate, 6 frictions, thinner steels... I think I used one thick steel to get my desired clearance...

Bill

 

I would use the waved plate, If you want an extra friction, get thinner steels.

 

just got my wave plates today.... I talked to Transgo they sayed WHAT EVER YOU DO run a WAVE plate!

 

I think the wave plates reduce clutch pack chatter. They are also supposed to make engagement feel more linear. Without them shifts would be more firm, with them (at the same line pressure) you get the same amount of clutch holding power but a smoother engage.