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Gearbox number GP


GeoofT
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Indeed, that stamping doesn't look factory. Difficult to explain, but I expect it is a recon at some point.

Looks like  4 cylinder gearbox, is the gearbox rear flange round or squarish? That is a giveaway (squarish is a 3 synchro, round 4 synchro) thogh all od usnits areround outputs. Other tell-tale is bolt head size, 1/2 or 9/16? And what car of course...though that is not a terribly reliable indicator.

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Me glasses are working at full magnification however if you look to the right of the G - where it has been overstamped but not totally accurately - you can see what appears to be the side leg of an 'A'. The two horizontal marks to the left of that again may just be over a 'G' with the P clearly added in a clear space to the right and the new numbers overstamped well to the right of where the original number would be. Could it be an overstamped recon GA box?

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On 16/11/2017 at 6:55 PM, clive said:

Indeed, that stamping doesn't look factory. Difficult to explain, but I expect it is a recon at some point.

Looks like  4 cylinder gearbox, is the gearbox rear flange round or squarish? That is a giveaway (squarish is a 3 synchro, round 4 synchro) thogh all od usnits areround outputs. Other tell-tale is bolt head size, 1/2 or 9/16? And what car of course...though that is not a terribly reliable indicator.

The car is a 65 herald 1200, with original engine.  Bolts are 1/2 inch. I'll check the rear flange later.  Thanks for your help

 

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