WANTED Banjo axle diff

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John Watson
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WANTED Banjo axle diff

Post by John Watson » Sat Feb 08, 2020 5:26 pm

We are looking for a standard banjo axle diff for the Marathon MGB.
Any one have one?
Thanks
John Watson
1964 MGB Roadster Mk1
2018 MG ZS Exclusive 1ltr Auto
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Peter Cresswell
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Re: WANTED Banjo axle diff

Post by Peter Cresswell » Sat Feb 08, 2020 9:41 pm

Hi John
You might strike lucky tomorrow at Stoneleigh. People would want money for it though as I understand they are in short supply as the racers keep using them up - like we did with TA diffs until we discovered the Ford diff could be made to fit the TC casing.
Although they won't be there tomorrow, you could try pulling the sympathy trick on Ron Gammons or Gerry Brown. Both are likely to have one kicking around somewhere I suspect.
Pete
Pete
1969 MGB Roadster
2011 MG 6 TSE Magnette
2007 Mercedes SLK
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John Watson
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Re: WANTED Banjo axle diff

Post by John Watson » Sun Feb 09, 2020 11:18 am

Thanks for the comments Pete
It has a low ratio which is not good for the MPG.

John
John Watson
1964 MGB Roadster Mk1
2018 MG ZS Exclusive 1ltr Auto
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Paul Hollingworth
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Re: WANTED Banjo axle diff

Post by Paul Hollingworth » Sun Feb 09, 2020 2:21 pm

Hi John, I'll ask around at our Natter tomorrow for you.
Paul
1971 MGB roadster & 2006 MGTF
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John Watson
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Re: WANTED Banjo axle diff

Post by John Watson » Sun Feb 09, 2020 3:10 pm

Thanks Paul. It seems we have a 4-2.1 we need a 3-9.1.
John
John Watson
1964 MGB Roadster Mk1
2018 MG ZS Exclusive 1ltr Auto
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Adrian Oliver
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Re: WANTED Banjo axle diff

Post by Adrian Oliver » Mon Feb 10, 2020 10:36 am

Here you go John, this one even has a 3.9:1 diff:

https://www.ebay.co.uk/itm/MGB-banjo-wi ... SwqUleOK5M
1962 Chelsea Grey MGB
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B Faiers
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Re: WANTED Banjo axle diff

Post by B Faiers » Wed Feb 26, 2020 9:02 am

PM me if you still require one - I have one in the loft that is going spare.
1964 MGB Roadster
1958 MGA Coupe
1926 MG 14/28 Bullnose
2012 MG 6TSE
2003 MG ZS180
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B Faiers
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Re: WANTED Banjo axle diff

Post by B Faiers » Thu Feb 27, 2020 10:04 am

Anyone know how to identify the difference between a 3.9 and 4.2 diff?

Is it likely to be marked on the casing?

Only stamping I can find at first glance in the gloom of my loft appear to be A+4 & B+7 which might relate to the shims.
1964 MGB Roadster
1958 MGA Coupe
1926 MG 14/28 Bullnose
2012 MG 6TSE
2003 MG ZS180
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Paul Hollingworth
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Re: WANTED Banjo axle diff

Post by Paul Hollingworth » Thu Feb 27, 2020 2:29 pm

The sure fire way of telling the ratio is to count the teeth on the crownwheel and pinion.
1971 MGB roadster & 2006 MGTF
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B Faiers
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Re: WANTED Banjo axle diff

Post by B Faiers » Thu Feb 27, 2020 6:45 pm

That is not as easy as it sounds in the darkness of the loft, whilst trying to balance the unit on a beam to stop it falling through the ceiling and not getting covered in grease. (I left the grease on it to preserve it when I put it in a plastic sack 20 years ago -it seems to have worked).

I was hoping there would be a marking on the case or crown wheel somwhere that one of our wise members would know about.
1964 MGB Roadster
1958 MGA Coupe
1926 MG 14/28 Bullnose
2012 MG 6TSE
2003 MG ZS180
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