Triumph pre unit transmission

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Joined: Tue Jul 03, 2018 3:06 pm

Triumph pre unit transmission

Unread post by Montij » Sat Jul 14, 2018 9:12 pm

Can anyone tell me anything about this transmission?

Im hoping to rebuild it but dont know exactly what i have.
I think the front cover may be incorrect cant find any pictures online of one just like this.

Images too large im going to post a link

Thanks in advance

Posts: 256
Joined: Tue Mar 03, 2009 6:47 am

Re: Triumph pre unit transmission

Unread post by graffian » Tue Jul 31, 2018 7:05 am

I haven't had a triumph box for a long time, I had a slickshift box behind my 45.

The cover is from the other type of pre unit box I used to see, I have no idea how many types there were.
Slick shift boxes have the has a ovalish/diamond cover, covering the clutch lever and the bit the
selector lifts. They also have a horizontal pointing clutch arm and they have the oil filler where it is
on your box, yours should have the cable stop there.

So it looks like you have some wrong bits. I have no idea which, check the number and see what the
shell is for?

Apart from the slick shift mechanism they were the same internaly as far as I remember.
I had a shell and stuck all the internals from an early 70's T120 in it, 4 speed, and when I had
my 45 I put T140 5spd box internals in it. But it was all quite a while ago.

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