Ahhh. Yes John. The good old two spanner grip to tighten these awkward little blighters 

Yes, to both, Colin!   But the output and input  flanges?  I have a small, low torque ( up to 40 lbs.ft) wrench and i can't get that in. There must have been 'special tools' on the production line!

I found a couple of extension bars gets the torque wrench far enough out to work, with a ring spanner wedged against the chassis crossrail to stop the bolt turning. Agree wholeheartedly. Also found that drain plugs are easily installed off or on the car with a little care.

The thing is someone actually spent a lot of time, thought and effort coming up with the qwerty keyboard. To quote old 'Enry "Thinking is the hardest work there is, which is probably the reason why so few engage in it". I don't know but I suspect something the same with how numbers are arranged on a keyboard. Zero and one are the most used and therefore placed nearest the hand of the typist. Whereas a phone keypad the hands are in free space above the numbers.

Problem with replacing is that while all the bolts come with specified torques, there's no room to get a torque wrench in there! Hohum, just heave on   it until you can't move it anymore! And why Triumph never fitted drain plugs - well, I know, to save money - but now they are 50+ years old they really should get them.

It was pointed out to.me that the telephone keyboard, that replaced the dial, has the numbers in reverse order to the numeric keys that are on most PC keyboards.   Asvthey say, different strokes!

This^^^^^ !

Late braking is easy - it is the late stopping that is terrifying   Roger

Ha ha me too 🤪  despite not having the technical ability or knowledge 

Somehow I feel at home here.