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M21 gearbox


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#1 _JJ21_

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Posted 21 April 2021 - 02:45 PM

Anyone seen an original V8 M21 box with painted letters "ZE" in yellow on the top?

Does it mean anything in particular?

I believe its later model box as has the switch on the selector input. Cluster is the 497 so definitely M21 ratio.
Thanks

Edited by JJ21, 21 April 2021 - 02:46 PM.


#2 yel327

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Posted 21 April 2021 - 03:13 PM

ZE is the broadcast sheet code for the box. It is to identify it in the VAP.

#3 Bigfella237

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Posted 22 April 2021 - 09:53 AM

I have "ZD" recorded as a M20 from an '82 Commodore with an "L36" 4.2L blue motor.

 

And I have "ZF" listed as a M20 from an '82 Commodore 6 cylinder.

 

So I'd guess that "ZE" is probably a M21 from the same era 5.0L Commodore?



#4 _JJ21_

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Posted 22 April 2021 - 11:05 AM

Ok guys thanks for that...was curious to what it meant

#5 yel327

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Posted 22 April 2021 - 01:12 PM

Or from a 4.2, if M21 was still optional behind 4.2L

#6 toranamech

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Posted 20 August 2021 - 10:43 AM

I have ZE from a VK 134 pack, L31 M21 optioned, so ZE must meant M21 in the V series Holdens



#7 Shiney005

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Posted 21 August 2021 - 08:14 AM

They weren't in alphabetical order though, as ZL is a 1980 M20.



#8 grumpy xu1

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Posted 21 August 2021 - 06:36 PM

Obviously the picking code also refers to the gear ratio aswell. I would say around early commodore aswell.

#9 Dr Terry

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Posted 23 August 2021 - 04:36 PM

They weren't in alphabetical order though, as ZL is a 1980 M20.

Was that a 6 or a V8 gearbox ?

 

Dr Terry



#10 _JJ21_

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Posted 25 August 2021 - 11:05 AM

Hi Dr Terry,

Its a V8 gearbox. Has the M21 cluster numbers.

Cheers

#11 Dr Terry

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Posted 25 August 2021 - 05:41 PM

Maybe the ZD V8 M20 was for Commodore & the ZE V8 M20 was for WB, i.e. different shifters.

 

Dr Terry



#12 Shiney005

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Posted 31 August 2021 - 12:16 PM

Are you part of AHA Terry? There are a few of us compiling gearbox and engine numbers and I will send the list in once it is large enough.



#13 Dr Terry

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Posted 31 August 2021 - 05:55 PM

Are you part of AHA Terry? There are a few of us compiling gearbox and engine numbers and I will send the list in once it is large enough.

What or who is AHA ?

 

Dr Terry



#14 Shiney005

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Posted 31 August 2021 - 06:10 PM

Attached File  Screenshot 2021-08-31 160935.png   198.67K   4 downloads






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