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Diff Cage AYG3037

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DavidE

Post subject: Re: Diff Cage AYG3037

Posted: Sat Jun 02, 2018 5:37 pm

998cc

Joined: Mon Jan 12, 2015 10:59 pm
Posts: 985
Location: Holt ACT

winabbey wrote:

cooperess wrote:

Googling BTA142 and AYG3037 has come up with zero responses.

BTA142 appears in the Morris 1100 parts book, and seems to be very similar to BTA145. No idea what the difference is.

You can't find AYG3037 because BMC used the UK part number BTA145 in parts books and other external references. See the drawing below.

Attachment:

AYG3036 Differential Case Complete BTA145 wm.jpg

Doug, Do you have any insight to the history of the BTA series of Part Numbers? They pop up all over the place. Thanks.

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winabbey

Post subject: Re: Diff Cage AYG3037

Posted: Mon Jun 04, 2018 12:45 pm

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Joined: Wed Oct 03, 2007 9:04 pm
Posts: 6751
Location: Melbourne, VIC

DavidE wrote:

Doug, Do you have any insight to the history of the BTA series of Part Numbers? They pop up all over the place. Thanks.

I've done a bit of searching and can't find much about the origin or meaning of the BTA prefix, except that it is mainly used on suspension and steering parts.

_________________
ex-NSW Police 1970 MK II Cooper S
VMCI #43

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cooperess

Post subject: Re: Diff Cage AYG3037

Posted: Wed Jun 13, 2018 1:07 pm

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Joined: Wed Sep 30, 2015 9:38 am
Posts: 1574
Location: Brandy Hill, NSW

I have just purchased a NOS BTA145 and it is packaged in a box marked BTA145 but embossed BTA142. What the!!

Attachment:

Mini Diff Cage BTA145 - BTA142 001.jpg

Attachment:

Mini Diff Cage BTA145 - BTA142 002.jpg

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winabbey

Post subject: Re: Diff Cage AYG3037

Posted: Wed Jun 13, 2018 2:37 pm

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Joined: Wed Oct 03, 2007 9:04 pm
Posts: 6751
Location: Melbourne, VIC

Part numbers are often different to casting numbers. One casting can be machined or even used as is for different applications and therefore have different part numbers.

I'll do some searching to see if this is the case here.

_________________
ex-NSW Police 1970 MK II Cooper S
VMCI #43

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