Norton Commando 1972/74 AMC 4 speed gearbox for sale

Champy72 · Jan 8, 2021

Gearbox works well and smoothly on gear changes. Not been stripped down, and not run that many miles in the last 15 years or so, although it HAS run without any issues.
Anyone interested please make an offer. Not sure how much delivery will cost, but can get a quote if required.

Message me for any further info and pictures...

grandpaul · Jan 9, 2021

I would think that transmission would/could work on all but the MkIII, no?

...and could even be fitted to a MkIII by replacing the outer and inner covers and a few shifter bits...

(unless I'm wrong, in which case it will be pointed out straight away)

Champy72 · Jan 9, 2021

I'm sure you are correct concerning other models (apart from the Mk lll!

It is a standard AMC casing after all!

L.A.B. · Jan 9, 2021

grandpaul said:
I would think that transmission would/could work on all but the MkIII, no?

...and could even be fitted to a MkIII by replacing the outer and inner covers and a few shifter bits...

(unless I'm wrong, in which case it will be pointed out straight away)

To fit a pre-Mk3 gearbox case to a Mk3 (with the standard left-foot gearchange) the quadrant boss would need to be machined down and Mk3 quadrant, bush and circlip used.

prince of darkness · Jan 12, 2021

Champy72 said:
Gearbox works well and smoothly on gear changes. Not been stripped down, and not run that many miles in the last 15 years or so, although it HAS run without any issues.
Anyone interested please make an offer. Not sure how much delivery will cost, but can get a quote if required.

Message me for any further info and pictures...

As it happens I'm after a g/box for a 73 project. I live in NSW AUSTRALIA . Let me know what you want and will see if it works out ok with postage etc

Bernhard · Jan 12, 2021

prince of darkness said:
As it happens I'm after a g/box for a 73 project. I live in NSW AUSTRALIA . Let me know what you want and will see if it works out ok with postage etc

Is you name Lucas?

prince of darkness · Jan 12, 2021

Bernhard said:
Is you name Lucas?

No , wish it was then I could justify the handle.

Champy72 · Jan 13, 2021

prince of darkness said:
As it happens I'm after a g/box for a 73 project. I live in NSW AUSTRALIA . Let me know what you want and will see if it works out ok with postage etc

It is now listed on fleabay, item number: 174593368814. I will check postage based on size and weight and let you know!!

EstuaryBoy · Jan 13, 2021

Bernhard said:
Is you name Lucas?

Lucifer????????????

Champy72 · Jan 13, 2021

Champy72 said:
It is now listed on fleabay, item number: 174593368814. I will check postage based on size and weight and let you know!!

OK. Cheapest is around £65 for 8-12 days delivery, or around £125 if you want faster delivery. Prices do not include full insurance cover.

Stephen Hill · Jan 16, 2021

The listing says it will fit "Commando's up to Mk 3, Atlas and Dominators". You might want to note that it will fit Atlas and Dominators if internal components are changed (not included).

grandpaul · Jan 16, 2021

It will EITHER fit a Commando OR a pre-Commando. It will NOT fit BOTH!

The "clocking" of the cast-in mounting bolt holes (maybe just the bottom one) is DEFINITELY different.

You CANNOT swap them.

(and that item # 174593368814 does not come up...)

L.A.B. · Jan 16, 2021

grandpaul said:
It will EITHER fit a Commando OR a pre-Commando. It will NOT fit BOTH!

The "clocking" of the cast-in mounting bolt holes (maybe just the bottom one) is DEFINITELY different.

You CANNOT swap them.

Are you thinking of the Matchless AMC gearbox?

grandpaul said:
(and that item # 174593368814 does not come up...)

Norton AMC Gearbox | eBay

This a good working example of the AMC Norton 4-speed Gearbox. The gearbox will fit Commando's up to Mk 3, Atlas and Dominators, but check your model first! Mounting bolts. Clutch pushrod. Gear change lever.

www.ebay.co.uk

Time Warp · Jan 16, 2021

prince of darkness said:
As it happens I'm after a g/box for a 73 project. I live in NSW AUSTRALIA . Let me know what you want and will see if it works out ok with postage etc

Buy a $1000 / $1300++ gearbox where you have no idea of the actual condition of the internal parts nor does the seller ?
Yikes and it does not look very Commando.

Braver than me but good luck with the sale.

Hortons Norton · Jan 16, 2021

Atlas main shaft is shorter. The box can be used.

Hortons Norton · Jan 16, 2021

grandpaul said:
It will EITHER fit a Commando OR a pre-Commando. It will NOT fit BOTH!

The "clocking" of the cast-in mounting bolt holes (maybe just the bottom one) is DEFINITELY different.

You CANNOT swap them.

(and that item # 174593368814 does not come up...)

WRONG!

Champy72 · Jan 17, 2021

Stephen Hill said:
The listing says it will fit "Commando's up to Mk 3, Atlas and Dominators". You might want to note that it will fit Atlas and Dominators if internal components are changed (not included).

Oh. As it is a self contained gearbox, what internal components need to be changed?

Champy72 · Jan 17, 2021

Hortons Norton said:
WRONG!

I apologise. I listed what I had been told, basically. I will amend.

L.A.B. · Jan 17, 2021

Champy72 said:
I apologise. I listed what I had been told, basically. I will amend.

N12986 casting is a pre-Commando gearbox. The outer cover is pre-Commando as it has the earlier clutch cable entry position.
Edit: Mainshaft appears to be Commando.

Champy72 · Jan 17, 2021

Time Warp said:
Buy a $1000 / $1300++ gearbox where you have no idea of the actual condition of the internal parts nor does the seller ?
Yikes and it does not look very Commando.

Braver than me but good luck with the sale.

The gearbox came from a 910 Commando, it was then installed onto a new frame which was built for a Commando engine, and it fits. I'd say it was a Commando gearbox. The main casing certainly looks the same as the parts drawings.
As for your other comment, the price is deliberately low due to the unknowns, although I have run with it and I would vouch for it's operation. £480 = $652 - not sure where you converted prices come from.
Of course, you can always get a complete unit from ANI for £1690 if you prefer....

Norton Commando 1972/74 AMC 4 speed gearbox for sale

Champy72

grandpaul

Champy72

L.A.B.

Moderator

prince of darkness

Bernhard

prince of darkness

Champy72

EstuaryBoy

Champy72

Stephen Hill

grandpaul

L.A.B.

Moderator

Norton AMC Gearbox | eBay

Time Warp

.......back to the 70's.

Hortons Norton

Hortons Norton

Champy72

Champy72

L.A.B.

Moderator

Champy72