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  #1   IP: 2.127.215.21
Old 11-11-2018, 06:49 PM
Edenboy Edenboy is offline
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Default Thwaites dumper gearbox identification / parts.

I'm quite familiar with many dumper gearboxes i.e 40M, 85M and JCB type torque converter. I've recently took a manual gearbox out of an early Thwaites 4-5 ton dumper which has this Newage gearbox I don't recognise. I've attached a picture of the ID plate but get nothing on Google. Any ideas?
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  #2   IP: 212.88.42.35
Old 14-11-2018, 12:33 AM
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V8Druid V8Druid is offline
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Default Re: Thwaites dumper gearbox identification / parts.

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Originally Posted by Edenboy View Post
I'm quite familiar with many dumper gearboxes i.e 40M, 85M and JCB type torque converter. I've recently took a manual gearbox out of an early Thwaites 4-5 ton dumper which has this Newage gearbox I don't recognise. I've attached a picture of the ID plate but get nothing on Google. Any ideas?
What's wrong with it ?? and what sort of age is it
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  #3   IP: 151.230.151.118
Old 14-01-2019, 09:34 PM
Edenboy Edenboy is offline
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Default Re: Thwaites dumper gearbox identification / parts.

Two gears have shredded. Probably late 80ís.
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  #4   IP: 212.88.42.35
Old 17-01-2019, 10:13 AM
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V8Druid V8Druid is offline
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Default Re: Thwaites dumper gearbox identification / parts.

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Two gears have shredded. Probably late 80ís.
sounds like a.n.other jobbie Boyo .... finding bits'll probably be very uphill .. there is an old dumper FB page ... could try asking on there
https://www.facebook.com/groups/962580033824639/
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  #5   IP: 86.159.109.161
Old 17-01-2019, 11:30 PM
grifferr grifferr is offline
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Default Re: Thwaites dumper gearbox identification / parts.

Is it a gearbox with a manual forward/reverse shuttle?
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  #6   IP: 151.230.151.118
Old 20-01-2019, 06:52 PM
Edenboy Edenboy is offline
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Default Re: Thwaites dumper gearbox identification / parts.

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Is it a gearbox with a manual forward/reverse shuttle?
Yes thats the one.
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  #7   IP: 86.129.199.154
Old 20-01-2019, 09:27 PM
grifferr grifferr is offline
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Default Re: Thwaites dumper gearbox identification / parts.

Ok its not good news then. There is a shaft or gear set that is a common fail. Parts for the gearbox are not available as far as i know. They would be late 70s to early 80s. Most of these are 4 speed but there are some 5 speed. If your dumper has a ford engine i am told it is possible to fit a ford cargo gearbox but only 1 reverse gear then.
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  #8   IP: 151.230.151.118
Old 20-01-2019, 10:34 PM
Edenboy Edenboy is offline
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Thumbs up Re: Thwaites dumper gearbox identification / parts.

Thanks very much for the info. Think ive found a 4 speed Cargo box which will work 👍
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