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Re: Gearbox case numbers

I'm guessing it's a typo in your post but the M20 gearbox case number is 66-3028..not 3128...

That aside, throughout the war and up until the gearbox was changed for the tele fork models the 66-3028 number was the one used...

Quickly looking through early post war lists for different models I can't find the other number you quote...I'd avoid the case unless you can tie the number down definitively...Different numbers usually mean different parts...

I may have a spare one but will have to check...Mail me off forum if you draw a blank...Ian

email (option): ian@wright52.plus.com

Re: Gearbox case numbers

Hi Ian,
Okay, brain fart on my part it is actually 66-3030.
Short of measuring with a vernier they seem indentical. The plot thickens......😳
Scott

Re: Gearbox case numbers

Found the answers on the tech page, why I didn’t go there first I don’t know!
Any way yes it will work, post 48 Production
Scott

Re: Gearbox case numbers

That one won't do it...post 48 gearboxes were filled with oil through the front cover, whilst WD boxes were filled through a filler 'spout' cast into the main gearbox case...

As the later gear box case doesn't have the filler spout, if you fit the inner and outer cover off a WD box to the later case there isn't anywhere to put the oil in!....Ian

email (option): ian@wright52.plus.com

Re: Gearbox case numbers

Yeah, that could be an issue!😂😂

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