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VtVette ZF6 removal?
Guru
Las Vegas, NV
357 Posts
Member since:
2007/8/31 0:00



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How difficult is it to remove/swap a ZF6? Assuming you are not changing the clutch, bearing, etc Is it really just a matter of remove shifter,drop exhaust, remove C-beam, propshaft, remove wires/associated hardware and remove the transmission from the bell housing?

Am I oversimplifying this? I've only been under my '93 a few times but from the looks of things this is a pretty simple trans to swap out?

Opinions please and tips/tricks before I dig in in a few weeks?

Thanks,
Posted on: 2010/3/11 23:43
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Brian
VTvette

1993 triple black roadster 6 speed
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anesthes Re: ZF6 removal?
Master Guru
Boston, MA
646 Posts
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2008/6/18 18:02



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Drop exhaust, remove shifter knob, remove cbeam, unbolt trans and slide it out.

Pretty easy. Only issue is the thing weighs more than the engine...

Never tried it without a lift though..

My new lift has a stupid plate (hydraulic/cable under) which makes using a trans jack a pain in the ass. But at least an SUV/truck can go all the way up without hitting hydraulic lines.


-- Joe
Posted on: 2010/3/11 23:46
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'79 Z28. 412 CID, NP 833 transmission, 3.73 10.5" rear end.
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VtVette Re: ZF6 removal?
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Las Vegas, NV
357 Posts
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cool!

I will be using a lift with arms which swing in on each side and no floor plate so, complete access to the trans and room for transmission jack.

Thanks for the good news!
Posted on: 2010/3/11 23:54
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Brian
VTvette

1993 triple black roadster 6 speed
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BrianCunningham Re: ZF6 removal?
Senior Guru
Boston, MA for the most part :)
7763 Posts
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2007/12/30 0:00



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if you have a transmission jack, which you want a ZF is HEAVY, than the hardest part is getting off the stupid shift knob. The little wedge that hold the stock knob on is a royal PITA!

some beam plates make putting it back on a lot easier

you need to hammer the C-beam back in order to get it off.
Posted on: 2010/3/12 1:37
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Polo Green 95 LT1 6-spd http://mysite.verizon.net/vzevcp74/
383 LT1/Vortech Supercharger/AFR heads/Rod end suspension/Penske-Hardbar dual rate coilovers/Wilwood 6pot brakes
NCCC Governor: http://BayStateCorvetteClub.com
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bogus Re: ZF6 removal?
Grand Imperial Pooh-Bah
San Pedro, CA
20856 Posts
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yea... heavy... the damned thing must weigh 150 lbs.

and it's dead weight.

However, with a lift and a good tranny jack, no probs!
Posted on: 2010/3/12 4:08
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CentralCoaster Re: ZF6 removal?
Senior Guru
San Diego, CA
9454 Posts
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2007/10/28 0:00



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Put the ass end up on 6-ton stands, and you'll have enough room to wheel it out of there on a trans jack. I bought one from harbor freight for $80 or so.
Posted on: 2010/3/12 4:48
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1985 Z51, ZF6
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CentralCoaster Re: ZF6 removal?
Senior Guru
San Diego, CA
9454 Posts
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On reinstall, get the cbeam loosely fitted before tightening any bolts down to the bellhousing.
Posted on: 2010/3/12 4:49
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1985 Z51, ZF6
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Randyj75 Re: ZF6 removal?
Guru Newb
MD
129 Posts
Member since:
2006/2/10 0:00



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Quote:

BrianCunningham wrote:
if you have a transmission jack, which you want a ZF is HEAVY, than the hardest part is getting off the stupid shift knob. The little wedge that hold the stock knob on is a royal PITA!

some beam plates make putting it back on a lot easier

you need to hammer the C-beam back in order to get it off.


Put the top down before trying to remove the pin from the shifter. Ask me how I know.

Randy
Posted on: 2010/3/12 17:27
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CentralCoaster Re: ZF6 removal?
Senior Guru
San Diego, CA
9454 Posts
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btdt. When it finally came loose, I jammed my elbow pretty hard into the headliner.

And don't be an idiot like me and pound it back in tightly after you're done.

Are you putting a Hurst shifter in while you're at it?
Posted on: 2010/3/13 6:01
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1985 Z51, ZF6
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VtVette Re: ZF6 removal?
Guru
Las Vegas, NV
357 Posts
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2007/8/31 0:00



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Quote:

CentralCoaster wrote:
btdt. When it finally came loose, I jammed my elbow pretty hard into the headliner.

And don't be an idiot like me and pound it back in tightly after you're done.

Are you putting a Hurst shifter in while you're at it?


Kevin - as a matter of fact I am. I figure it would be the perfect opportunity.

BTW - what are your current thoughts on gearbox fluid? Regular GM, Penzoil Syncromesh, BMW, Amzoil? I hate to ask but, I'm going to need to decide what fluid to go with.

No drag/autocross, just a cruiser.

Thanks,
Posted on: 2010/3/14 1:28
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Brian
VTvette

1993 triple black roadster 6 speed
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CentralCoaster Re: ZF6 removal?
Senior Guru
San Diego, CA
9454 Posts
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I'd go with the pennzoil synchromesh, which my research says is a relabeled bottle of GM's fluid that siperceded the original spec'd fluid.

Keep in mind the thinner synchromesh will be noisier from the get-go, especially if you have a single mass flywheel.

And regarding the castrol RS/TWS motor oil (assuming its even the same), the info I've found doesn't look reassuring. The castrol is thick and therefore quiet at first but thins out quickly anyways and I don't believe it is compatible with the synchro material. But you know what they say, opinions are like assholes.

Rest assured neither I, nor GM, nor zfdoc, nor Zerdeifenazi Ferkensourkraut will be buying you a new trans if their fluid recommendation fails you.
Posted on: 2010/3/15 4:00
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1985 Z51, ZF6
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LD85 Re: ZF6 removal?
Master Guru
Indianapolis, Indiana
784 Posts
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2005/9/16 0:00



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get the car off the ground a ways, no less than 12-15" from the ground to the bottom of the floor jack spot on he rail

It will make the job a lot easier...

Oh, and put a TKO back in, in place of the ZF..
Posted on: 2010/3/16 16:54
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2005/Z51
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anesthes Re: ZF6 removal?
Master Guru
Boston, MA
646 Posts
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2008/6/18 18:02



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Quote:

LD85 wrote:
get the car off the ground a ways, no less than 12-15" from the ground to the bottom of the floor jack spot on he rail

It will make the job a lot easier...

Oh, and put a TKO back in, in place of the ZF..


Got a link to your TKO thread?

I can't recall if it has the same bolt pattern as the muncie/t10/sag or if it's specific?

-- Joe
Posted on: 2010/3/16 17:22
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LD85 Re: ZF6 removal?
Master Guru
Indianapolis, Indiana
784 Posts
Member since:
2005/9/16 0:00



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Obviously, he needs all the 4+3 or TKO clutch, 4+3 BH and 4+3 slave etc.

The TKO is the same bolt pattern as the 4+3

http://www.corvette-guru.com/modules/ ... t_id=54143#forumpost54143
Posted on: 2010/3/16 18:13
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2005/Z51
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