I used M12 on mine but M10 should be well up to the job if they are decent joints. My logic was
most motorsport applications use 1/2" and M12 is nearly there.
Can anyone confirm whether 10mm rose joints on my trailing arms would do the job, or should I be going for something a bit bigger?
Cheers
Alex
PS
This is only on one side, the other will be the usual bushed affair
i would be happy with that on my car, others might suggest bigger. More depends on the quality of the joints though i believe.
Or one end, depending where you are looking from I used M12 on mine but M10 should be well up to the job if they are decent joints. My logic was
most motorsport applications use 1/2" and M12 is nearly there.
I was looking at CCVI joints pos type, steel/bronze with lubrication points
"The Basic load rating is 20.61 (kN)"
(no idea whether that is good or bad!
)
The axle is sierra DeDion if that makes a difference, I suppose as it's lighter than a live axle it should? Or is that statement asking for
trouble 
Cheers
Alex
M12 was my choice - plenty strong enough 
Mine are 5/16 or 3/8 can't remember which for sure, they are originally from a Formula Ford 2000 so they obviously felt they were up to the job, I'm putting roughly double the horsepower thro' them with no probs. I would point out tho' that most metric rosejoints are aimed at lower quality end of the market, top quality ones are available but not easy (or cheap) to find.
Hi you will find that by using a unf thread you will be able to have a much finer thread/adjustment per half turn of a joint. As apposed to a metric
thread.
cheers matt
quote:
Originally posted by russbost
Mine are 5/16 or 3/8 can't remember which for sure, they are originally from a Formula Ford 2000 so they obviously felt they were up to the job, I'm putting roughly double the horsepower thro' them with no probs. I would point out tho' that most metric rosejoints are aimed at lower quality end of the market, top quality ones are available but not easy (or cheap) to find.