TR4/4A Front Suspension Vertical Link

[Scotsman]

Questions reg TR4A front suspension


1 How do you tell the left side vertical link from the one on the right side? The two on the project car I am working on are identical including the direction the trunnions threads on.


2 Did all the TR's from the 2 through 6 have the same vertical links, and if not how do you tell the difference? Is there a part number stamped on them that I can use to differentiate them. The Moss part numbers for all these model years are the same, but I have been told that Triumph beefed up these parts from the TR4A onwards. I am trying to find used parts and want to be sure I get the correct item for my 4A


3 Are any of the other front suspension parts left and right sided, or am I safe in just getting the correct link and trunnion and using the other parts I have.


Thanks


Richard

 

[TR3driver]

Are you working on a 3A or 4A?

The vertical links changed when the 4A was introduced, I believe, along with the trunnions. IIRC they also became "handed" (TR2-4 VL were same side to side). The Moss website shows different part numbers for each side on 4A (both different than TR2-4).

Lower A-arms also changed at the same time. Upper A-arms changed sometime earlier, during TR4 run. The A-arms are not "handed" as such, but are different front & rear. Again, the Moss website shows the changes in part number.

Offhand I can't think of anything else in the suspension that is handed. Steering and brakes yes, but not suspension.

 

[Popeye]

On my 4A the vertical links and trunnions are handed. I can look tonight and see which one is which handed - attached is a photo of my disassembly; passenger side. If you squint, you can see the thread direction...