• Hey Guest!
    British Car Forum has been supporting enthusiasts for over 25 years by providing a great place to share our love for British cars. You can support our efforts by upgrading your membership for less than the dues of most car clubs. There are some perks with a member upgrade!
    **Upgrade Now**
    (PS: Upgraded members don't see this banner, nor will you see the Google ads that appear on the site.)
Tips
Tips

GT6 Numbers, numbers, numbers... [off my gt6]

Share this page

F

Flinkly

Jedi Trainee
Offline
well,

i got around to getting the major part numbers written down for my gt6 today (after alot of work on her), and some numbers don't make sense when looking through my parts catalogue.

the commission, body and engine numbers all make sense, but my transmission number is KE 4884 which means it's for the "home" market (england), and my diff number is KC 62976, which is too small of a number for a mark 3.

this is all going off of the parts catalogue, so i might just be showing my noobness, so thanks for any light that you guys can shed on this. i did order a certificate already because it seemed the thing to do, so i guess i'll find out in a month what this all means.
 
Don't know as much about the later models but I do know that there should be no surprise if the tranny and diff were replaced on a GT6. With my '67 I had the tranny out a few times and the diff rebuilt once. They just were not the best match for the power. If the car would have been a little heavier IMHO they would have really been a problem.
If you are willing to spend a few bucks on your curiosity this might help. https://www.heritage-motor-centre.co.uk/archive/certificate_index.html They might have a record of the numbers you seek.
BTW, when I had the diff rebuilt I took it to the local vocational college and one of the automotive instructors did it for a class project. I never had a problem with it after that.
 
Hi,

Not surprising to me either that the numbers don't match. Triumph had a strong factory exchange program, for rebuilt major items like gearbox and diff. So, if a repair was ever needed it was quite likely that's what happened.

I don't know what was being done in the early 70s, but in the early to mid-60s it was common practice to add a suffix to the serial number to identify the part as having been rebuilt. Rumor has it that the TR 4-cyl. engines rebuilt under the factory reconditioning program were often painted an alternate color such as blue or maroon, not the original semi-gloss black.

On the other hand, there are now and have been for a long time independent shops doing this sort of rebuild/exchange. Each would likely have handled this sort of thing differently and the parts would likely have been shipped all over the place.

Currently in my TR4 is a much later (70s) Triumph sedan gearbox, but the innards are TR6 spec. So, the g'box serial number would be misleading, in this case, if it were used for reference ordering parts. I know the gearbox was rebuilt somewhere in England. (One key reason I'm using the later g'box is that TR4 and earlier one has an unreinforced bellhousing that's known to crack when used on engines with a bit more than the stock horsepower.)

Yes, I've also heard it's not uncommon for GT6 gearboxes to have been replaced. With that model, the g'box apparently is known to be a bit of a weak link in the drive train.

So, in all likelihood, you've got a rebuilt and hopefully nicely freshened up g'box in there. I wouldn't worry if the g'box number doesn't match, for originality's sake. I don't think it's a very big issue. Same with the diff.

Engine number might be another matter to an extremely particular buyer, but only because it's more easily read and checked in the engine compartment.

Let us know what you find when you get the certificate.

/ubbthreads/images/graemlins/cheers.gif
 
Back
Top