LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Did I put my clutch DISC in backwards?

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Old 03-23-2010, 09:57 PM
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Default Did I put my clutch DISC in backwards?

So some of you might remember this problem:
https://ls1tech.com/forums/lt1-lt4-m...ange-help.html

But I finally got a chance to get the clutch out, and I think the DISC might have been put on backwards:




"Most clutch discs mount with the hub side (the side with the retainer and hub assembly facing outward) towards the transmission. A few cases install the discs in the opposite direction. This includes 1993-97 F-Bodies". - From the Ram directions.

I think mine is on backwards.

Last edited by Counted Out; 03-23-2010 at 10:06 PM.
Old 03-23-2010, 10:01 PM
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No you have it right. I believe if you try to put it on the other way the pressure plate wont bolt up.
Old 03-23-2010, 10:04 PM
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Originally Posted by massconfusion
No you have it right. I believe if you try to put it on the other way the pressure plate wont bolt up.
I know it will bolt up either way. People have put them on the wrong way and had the same problems I've had. That's why I'm thinking it's on backwards.
Old 03-23-2010, 10:07 PM
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"Most clutch discs mount with the hub side (the side with the retainer and hub assembly facing outward) towards the transmission. A few cases install the discs in the opposite direction. This includes 1993-97 F-Bodies". - From the Ram directions.
Old 03-23-2010, 10:08 PM
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Originally Posted by Counted Out
"Most clutch discs mount with the hub side (the side with the retainer and hub assembly facing outward) towards the transmission. A few cases install the discs in the opposite direction. This includes 1993-97 F-Bodies". - From the Ram directions.
That answers your question right there
Old 03-23-2010, 10:14 PM
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Originally Posted by bigj2717
That answers your question right there
I'm a newb to this, so the wording just kinda confused me.

So I had it on the wrong way the whole time?
Old 03-23-2010, 10:17 PM
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No you had it right. The directions say the hub normally faces out and on lt1 f-bodies it faces the opposite so that mean it faces the flywheel
Old 03-23-2010, 10:25 PM
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So the mystery continues.
Old 03-23-2010, 10:28 PM
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Is the clutch arm messed up or bent in any way?
Old 03-23-2010, 10:36 PM
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Originally Posted by bigj2717
Is the clutch arm messed up or bent in any way?
The fork? It appeared fine, but I'll have to check tomorrow.
Old 03-24-2010, 06:19 AM
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My best guess (I'm not familiar with your issues, but I'll guess it's not releasing) is the fork was mis-aligned. If that's the case you need to pay careful attention to the pressure plate now as it may have bent some of the "fingers" causing it to not release....in which case you'll need a new pressure plate.....
Old 03-24-2010, 08:09 AM
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I think the pic is correct. Look at the disk, there is a side that clearly protrudes outward. The side goes towards the front or into the flywheel.

Once you hold the pressure plate, disk and tool up to the flywheel and your ready to bolt it on, there should be around a 1/4" clearance between the flywheel and the pressure plate that will obviously draw up tight once you start torquing the 6 bolts down.

Going on memory here. But if the disk is on backwards it will be much harder to get the pressure plate on. In fact I dont think the stock bolts would even be long enough to actually start a thread. The gap before torquing down the bolts will be much greater than 1/4" IIRC.
Old 03-24-2010, 12:09 PM
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If you tried to put the disc on backwards..(the hub part that sticks out the most) towards the trans it won't go on unless you use longer pp bolts which right there would be a hint that its wrong. I've read countless material and talked to a few people that all say the disc only goes on one way but they aren't right...the lt1 is one exception.
Old 03-24-2010, 01:00 PM
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Originally Posted by riceburnerZ28
If you tried to put the disc on backwards..(the hub part that sticks out the most) towards the trans it won't go on unless you use longer pp bolts which right there would be a hint that its wrong. I've read countless material and talked to a few people that all say the disc only goes on one way but they aren't right...the lt1 is one exception.
I've talked to a "GM Tech" who said he once installed a disc backwards.

And just for the record, I am using longer pressure plate bolts, but NOT because the plate was on backwards. I broke a couple of my pressure plate bolts, and direct replacements were expensive. The bolts are nearly identical to stock, just a little longer (but not long enough to be a problem).



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