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Old Nov 11, 2012 | 05:16 PM
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Default Trans Removal only

So, read lots of threads about pulling the entire drive train for clutch/trans/gear changes. I've pulled just a 3rd member before without issue.

Now I need to swap just a manual trans, a low mileage unit for another low mileage Z06 trans, then installing my unit in someone else's car that has a bad 2nd gear.

Anyone drop a trans & leave the torque tube in place? Or is it just easier to pull the whole thing?

The other car I will most likely pull the whole thing as it is over 100k miles & dumb to not replace a clutch when in that far.

Thoughts & experienced input please.
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Old Nov 11, 2012 | 05:19 PM
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It is literally the exact same amount of work, with the exception of the tunnel plate. You can do it, but it is truly easier to remove the TT with the trans, and then separate them out of the car. Sorry.

Jack
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Old Nov 11, 2012 | 06:06 PM
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Ya, you can leave the tunnel plate and unbolt the trans from the torque tube.
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Old Nov 11, 2012 | 07:51 PM
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So sounds like 6 of one, 1/2 dozen of the other deal... guess it will give me an opportunity to install a remote bleed & check the clutch/slave while the TT it out. At least I have several months to tackle the full project.

Thanks for the input.
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Old Nov 11, 2012 | 09:40 PM
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Originally Posted by Trog
So sounds like 6 of one, 1/2 dozen of the other deal... guess it will give me an opportunity to install a remote bleed & check the clutch/slave while the TT it out. At least I have several months to tackle the full project.

Thanks for the input.
I misspoke earlier. To remove the diff/trans assembly from the torque tube, you still need to remove the tunnel plate to give you the clearance needed to slide it out. So literally the only difference will be where you unbolt: at the front or back of the torque tube.

I refuse to do any drivetrain removal without replacing the slave cylinder anyway. Consider them wear items. If you're that close, pull it out and throw a new slave in with a bleeder. Also take the opportunity to inspect the side to side play on the input shaft, to see if you might be due for some TT bushings.

Jack

Last edited by cptinjak; Nov 11, 2012 at 09:43 PM.
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Old Nov 11, 2012 | 10:18 PM
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Originally Posted by cptinjak
I misspoke earlier. To remove the diff/trans assembly from the torque tube, you still need to remove the tunnel plate to give you the clearance needed to slide it out.

Jack
No, you don't have to pull the tunnel plate.
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Old Nov 11, 2012 | 10:31 PM
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Originally Posted by lionelhutz
No, you don't have to pull the tunnel plate.
How do you get the clearance to go backwards with the transmission? Don't you hit the bottom of the storage compartment in the rear of the hatch? There is a lot of input shaft inside the rear of the TT.

Admittedly, I've never tried it with the tunnel plate still in the car, but the amount I have to come backward to get the trans off the TT (or the TT out of the bell housing) makes it hard for me to imagine there being enough room if you can't angle the driveline down to clear the storage compartment.


Jack
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Old Nov 12, 2012 | 12:03 AM
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You just lower everything down until the tube rests on the plate. I have done it, it clears just fine.
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Old Nov 12, 2012 | 01:28 AM
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Originally Posted by lionelhutz
You just lower everything down until the tube rests on the plate. I have done it, it clears just fine.
weird. Sorry for the false info. Never tried it, just assumed it wouldn't work.

Regardless, pull the TT and replace the slave while you're in there.

Jack
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Old Nov 12, 2012 | 12:44 PM
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I'd spray the 2 dowels on the TT/trans mating surface with PB Blaster once the car is in the air

as said above, if the slave is a couple of years old or not the newer 2004 Z06 w/ SKF bearing(face wraps down as opposed to flat)...........pull the TT and replace the slave

you could also leave the TT in and pull the prop shaft out to look at the couplers
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Old Nov 13, 2012 | 05:57 PM
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I don't remove the entire plate, Just unbolt the back half so I can lower the tube enough to slide the trans out. keep an eyes on the Intake manifold/firewall clearance. I leave the axles in the hubs too.

visual



Yes can see the plate and jackstand holding the tube up
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