Help identifying our Stag gearbox - strange ID number?

[susiedeer]

Hi Folks, I'm looking for a little help identifying if our manual gearbox is the original one for the car (probably unlikely) but also the number is a bit strange as I thought they started LD then 4 digits?
The number appears to be LE 5216 with some other smaller numbers underneath the main ones. I read somewhere that the LE prefix is for a TR4A gearbox but the contents are, I think, a Stag gearbox with 2 caged needle bearings on the countershaft at the back end (and a Torrington at the front) and radial needle roller thrust bearings at each end (unlike a TR4A).
Any thoughts or help appreciated.
Andy
Gearbox Number.jpg

[redstag]

Shows as a USA prefix here

http://club.triumph.org.uk/prefix1.htm#Stag

Pete

[susiedeer]

Shows as a USA prefix here

http://club.triumph.org.uk/prefix1.htm#Stag

Pete

Thanks for the input
It seems strange that an English Stag has an "American" gearbox.
Did US gearboxes get imported back here?
The TV8 is the original lump from the "log book" and I think the diff is original too, complete with lots of backlash.

[Ian Durrant]

Its possible it was a factory spare. Triumph would have held stocks of spares and later people like Rimmer Bros bought what they could. So an american spare could easily have ended up in a UK car I guess.

[Richard G]

Thanks for the input
It seems strange that an English Stag has an "American" gearbox.
Did US gearboxes get imported back here?
The TV8 is the original lump from the "log book" and I think the diff is original too, complete with lots of backlash.

Mine had a lot of backlash(diff) and I had it fixed at a very reasonable cost!

[susiedeer]

Mine had a lot of backlash(diff) and I had it fixed at a very reasonable cost!

Good to hear it's not too costly (hopefully)
The diff is my winter job to sort along with the rear suspension.

[susiedeer]

Its possible it was a factory spare. Triumph would have held stocks of spares and later people like Rimmer Bros bought what they could. So an american spare could easily have ended up in a UK car I guess.

Thanks Ian, that makes more sense than shipping US boxes back from USA.

[Marco Polo]

Interesting thread this, for me, I needed to obtain a Stag manual gearbox case for my son's car which we are "currently" (infrequently) restoring, his is a very late '77 car, 65 from end of production. I was able to obtain, what I was told was an early Stag manual case, S/N LD 2211, when we rebuilt the box the distance between the countershaft thrust bearings was far too short. I had to increase the distance between the faces of the gearbox by approx. 250 thou to get it all to fit. I also had to ream the holes for the countershaft to fit.
regards,
Raoul

[flying farmer]

Sounds like the same specification casing as the saloon boxes.

The box on my project Stag with a very early engine no (8 ESS) was an MB prefixed case with the Stag input shaft but saloon layshaft specification which sounds just like what you have. I assumed the case had been swapped due to damage, but I wonder if early boxes were built to the same spec as the saloons but upgraded later in production?

Neil

[susiedeer]

Hi Folks, I'm looking for a little help identifying if our manual gearbox is the original one for the car (probably unlikely) but also the number is a bit strange as I thought they started LD then 4 digits?
The number appears to be LE 5216 with some other smaller numbers underneath the main ones. I read somewhere that the LE prefix is for a TR4A gearbox but the contents are, I think, a Stag gearbox with 2 caged needle bearings on the countershaft at the back end (and a Torrington at the front) and radial needle roller thrust bearings at each end (unlike a TR4A).
Any thoughts or help appreciated.
Andy
[ATTACH=CONFIG]30337[/ATTACH]

Thanks for the input
It seems strange that an English Stag has an "American" gearbox.
Did US gearboxes get imported back here?
The TV8 is the original lump from the "log book" and I think the diff is original too, complete with lots of backlash.

Hi again, I found the reference to TR4A; it came from a Moss Europe catalogue, Moss TR4A Gearbox Parts.gif
more confusion, or what?

[flying farmer]

The Moss catalogue is purely referring to 3 or 4 synchro gearboxes. I know that CT prefix is TR, MG is 2.5PI, VA is Dolomite Sprint and I think MD is Triumph 2000.

All the gearbox cases are interchangeable between the 4 synchro models, the Stag being the only exception as it uses a thicker layshaft with roller thrust washers.

Neil

[susiedeer]

The Moss catalogue is purely referring to 3 or 4 synchro gearboxes. I know that CT prefix is TR, MG is 2.5PI, VA is Dolomite Sprint and I think MD is Triumph 2000.

All the gearbox cases are interchangeable between the 4 synchro models, the Stag being the only exception as it uses a thicker layshaft with roller thrust washers.

Neil

Thanks for the clarification Neil and with Ian's theory it makes good sense.
Cheers all
Andy