Brand new ZF trans

[2ljd]

https://honolulu.craigslist.org/big/pts/d/new-nos-oem-gmcorvette-manual/6386997277.html

In case anyone is interested...

[jmglyder]

Hello,

According to the link:

Fitment Details: This transmission is a direct replacement for 1989-1996 Corvettes (excluding ZR-1).

I don't know enough about these to say one way or another but the seller says the ZR-1 is excluded.

[2ljd]

I'm definitely no expert on these, but I thought there were a few mods that could be done and the trans would work in a Z?

[jmglyder]

I would hope that would be the case and if so someone will have a brand new trans :)

[QB93Z]

There are two issues to understand about the ZF transmission in C4's.


1. The Non-ZR-1 transmission has a shorter input shaft and housing. The input shaft and housing from a donor ZR-1 version can be installed to make the transmission fit in a ZR-1.


2. The later model ZF transmissions have a small diameter input shaft housing and the Throw-out Bearing has internal nylon strips that slide on the input housing. To use the later model transmission on a early model ZR-1, the correct throw-out bearing must be installed. I think that the change occurred in 1994 but you should verify the fit of the throw out bearing on the housing before installing the clutch. I learned this the hard way during a clutch swap job when the transmission could not be installed.


Jim

[2ljd]

Cool, thanks Jim!


Sent from my iPhone using ZR-1 Net Registry (http://r.tapatalk.com/byo?rid=90383)

[Dynomite]

There are two issues to understand about the ZF transmission in C4's.


1. The Non-ZR-1 transmission has a shorter input shaft and housing. The input shaft and housing from a donor ZR-1 version can be installed to make the transmission fit in a ZR-1.


2. The later model ZF transmissions have a small diameter input shaft housing and the Throw-out Bearing has internal nylon strips that slide on the input housing. To use the later model transmission on a early model ZR-1, the correct throw-out bearing must be installed. I think that the change occurred in 1994 but you should verify the fit of the throw out bearing on the housing before installing the clutch. I learned this the hard way during a clutch swap job when the transmission could not be installed.


Jim
A few more details of the use of a Black Label Transmission in a Later Model ZR-1 (1995 for example)

http://www.zr1.net/forum/picture.php?albumid=399&pictureid=3640


Blue Label Removed (TOP), Rebuilt (ZFdoc) Black Label Installed (BOTTOM).

Rebuilt Black Label Transmission Installed (https://www.corvetteforum.com/forums/c4-zr-1-discussion/3005470-tech-info-lt5-modifications-rebuild-tricks-500-hp-13.html#post1592505462)

[Ccmano]

It’s a last version Blue label 1052 000 089 for LT1/LT4.

Here’s another new one closer to home but also an LT1/LT4 version.
https://sfbay.craigslist.org/nby/pts/d/new-corvette-zf-6-speed/6347609352.html

For the money, to buy one and convert the input shaft, I might as well just send mine to Bill B and have him rebuild it.
H
:cheers:

[Dynomite]

It’s a last version Blue label 1052 000 089 for LT1/LT4.

Here’s another new one closer to home but also an LT1/LT4 version.
https://sfbay.craigslist.org/nby/pts/d/new-corvette-zf-6-speed/6347609352.html

For the money, to buy one and convert the input shaft, I might as well just send mine to Bill B and have him rebuild it.
H
:cheers:

Your last option is a winner as Bill B like Marc Haibeck are Rock Solid Professionals and perfectionists in what they do :thumbsup:

[GOLDCYLON]

Your last option is a winner as Bill B like Marc Haibeck are Rock Solid Professionals and perfectionists in what they do :thumbsup:


No argument here Cliff

[PhillipsLT5]

No argument here Cliff

Yep, Nail on head cliff, Strongly agree