Hope everyone had a good holiday!! Now on to my question...I installed a T-56 about a month ago in my IROC-Z. Now I have a vibration at a about 2300 RPM and up. The trans has been rebuilt as well. The vibration can be felt at a stand still while revving the engine. I put the trans in gear and depress the clutch and can feel it. I installed a new GM LT-1 flywheel, and SLP's disc and pressure plate, and new Moroso pilot bearing. Has anyone had a problem with the GM Flywheel before on a swap?? or SLP's clutch set???
Chris

 

How is your tranny mount?

 

It is a new Poly mount, W/ Spohn Tourqe arm and crossmember. Poly ends

 

I have herd of that problem it has somthing to do with the ajustment on the clutch it might be sort of ingaged or the fly wheel could have a slight worp hope u find the problem it sounds lick its ticking u of good luck

 

My auto uses the same mount as you, I believe. When I installed it, I felt a lot more vibration.

 

i dunno the only thing that happend when my tranny mount went was when i accelerated the car jolted forward just a bit and made a thump noise.

 

Thanks for the replies!!! It feels more like a vibration from the Flywheel than anything?? The mount I do not see causing this much problems.

 

anyone else have any ideas??

 

Just a thought. How is the driveshaft? Has it been balanced and have you checked that the U-joints are not notchy?

 

The vibration can be felt sitting still. Wheels do not have to spin at all. But yes the driveshaft is OK it is a new 1LE piece.
Chris

 

I thought the flywheel was supposed to be machined flat when a new clutch is put in. Did you do this?

 

Was a new GM LT1 flywheel, New SLP pressure plate, new SLP clutch disc, New Moroso pilot bearing, New GM bolts with Loctite through out, and torqued to spec.

 

Ok, this may be reaching a bit, but check out this thread

http://www.thirdgen.org/techbb2/show...ight=vibration

This was for an auto but it may apply.

 

Good thought but I just had the trans. out looking at the clutch set and all my bolts were tight. Used Loctite on them as well!
Chris

Thanks for the replies

 

I might be mistaken but you should get new flywheels reserfaced also.