Current collar:

1.506" ( 38.25 mm) OA height

1.091" ( 27.7 mm) from the top to the milled flat

So smaller than all 4 in post #130

If I went to the ZX collar I would theoretically gain 15mm. Making my stack up about 92mm. Does anybody have one?

@Terrapin Z?

  On 8/12/2023 at 11:51 PM, Patcon said:

Current collar:

1.506" ( 38.25 mm) OA height

1.091" ( 27.7 mm) from the top to the milled flat

So smaller than all 4 in post #130

If I went to the ZX collar I would theoretically gain 15mm. Making my stack up about 92mm. Does anybody have one?

@Terrapin Z?

 

There are two collars for the ZX one fits the 2+0 NA with the 225mm clutch like all the280Z and early 280ZX, The other fits the later 2+2 ZX NA, and the Turbo with the 240MM clutch. 

 

Edited August 13, 20231 yr by Terrapin Z
clarification

  On 8/13/2023 at 12:25 AM, Terrapin Z said:

There are two collars for the ZX one fits the 2+0 NA with the 225mm clutch like all the280Z and early 280ZX, The other fits the later 2+2 ZX NA, and the Turbo with the 240MM clutch. 

 

I have bought a 240mm clutch kit. I'm not sure of the difference in the collars.

  On 8/13/2023 at 12:40 AM, Patcon said:

I have bought a 240mm clutch kit. I'm not sure of the difference in the collars.

I am headed to a Z car show tomorrow morning. I'll see what I have that might help you out when I get home.  There is a different one for the 240mm 

I bought my transmission from a 2+2 with the 240mm clutch. I used the collar from that car but bought a new 240mm clutch and aluminum flywheel.  It works fine using the stock 240 master/slave and fork. 

It had been an odd weekend. One of those “if it can go wrong it will”. 
 

i have a bin of collars that all have bearings on them. 
 

did you figure an overall measurement needed? 

  On 8/14/2023 at 11:54 PM, Terrapin Z said:

It had been an odd weekend. One of those “if it can go wrong it will”. 
 

i have a bin of collars that all have bearings on them. 
 

did you figure an overall measurement needed? 

I understand.

I have a new part on the way. Let me lay my hands on that first

  On 8/15/2023 at 1:42 AM, Patcon said:

I understand.

I have a new part on the way. Let me lay my hands on that first

I to understand, apologies for the delay. I hope the one you have inbound works out for you. If not let me know. I should have something that might work. 

  On 8/16/2023 at 12:40 AM, Terrapin Z said:

I to understand, apologies for the delay. I hope the one you have inbound works out for you. If not let me know. I should have something that might work. 

That's great. I was just searching around on rockauto and they showed a part being available so I took a chance. We'll see what I get.

Your delay wasn't a problem. I was just being a little random...

One of these?

https://www.rockauto.com/en/catalog/nissan,1979,280zx,2.8l+l6,1209293,transmission-manual,clutch+release+bearing,1968

  On 8/17/2023 at 12:16 AM, Zed Head said:

One of these?

https://www.rockauto.com/en/catalog/nissan,1979,280zx,2.8l+l6,1209293,transmission-manual,clutch+release+bearing,1968

Yes

So I received the new collar yesterday

I ordered a different one but it was out of stock. I selected another product and Rockauto shipped it for the same price as the cheaper one. Which I thought was cool!

 

It looks to be about 10mm taller. I might go over to Cody's tomorrow and check out the total stack height

So measured the Exedy pressure plate

The Luk pressure plate was 44.3 mm

The Exedy 06030 is 1.927" or 48.95 mm

With the new collar and bearing it's 92.4 mm to the ears