GeoofT Posted November 16, 2017 Report Share Posted November 16, 2017 My gearbox number starts with GP, but I can't find any reference to this prefix. Can anyone help please. Link to comment Share on other sites More sharing options...
Pete Lewis Posted November 16, 2017 Report Share Posted November 16, 2017 Could be anyone reconditioning units and use their own stamps, As the G P are different stamp sizes its not likely to have any factory referance Pete Link to comment Share on other sites More sharing options...
Clive Posted November 16, 2017 Report Share Posted November 16, 2017 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. Link to comment Share on other sites More sharing options...
Pete Lewis Posted November 16, 2017 Report Share Posted November 16, 2017 Could the P 409 be a mike papworth number the remaining G and later stamps look more like old factory As if almost over stamped but not ground out the originals ?? Just a thought Pete Link to comment Share on other sites More sharing options...
dougbgt6 Posted November 16, 2017 Report Share Posted November 16, 2017 I was gonna say Papworth!! But I thought, they'll shout at me. Perhaps you could ring him? Link to comment Share on other sites More sharing options...
thescrapman Posted November 17, 2017 Report Share Posted November 17, 2017 It is GR. poorly stamped as usual Link to comment Share on other sites More sharing options...
Pete Lewis Posted November 17, 2017 Report Share Posted November 17, 2017 Think its a pretty clear P and far to many digits for a triumph number and all differing size stamps Dont see how thats anything like original factory too much gap between the G and the last set of numbers Sure this has all been restamped at some time by someone Pete Link to comment Share on other sites More sharing options...
Colin Lindsay Posted November 17, 2017 Report Share Posted November 17, 2017 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? Link to comment Share on other sites More sharing options...
GeoofT Posted November 18, 2017 Author Report Share Posted November 18, 2017 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 Link to comment Share on other sites More sharing options...
Pete Lewis Posted November 18, 2017 Report Share Posted November 18, 2017 so a GA will have crash 1st gear ??? Pete Link to comment Share on other sites More sharing options...
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