Completion update - New trunnion lock washer frustration

I have been in the process of changing my 3a to 4 front suspension. I bought the parts over a year ago as I gathered what I needed. the 3deg trunnions were fine until I tried to wind the lock washers on to the pivot shaft splines they were bloody tight then the thread gave both the nut and pivot shaft thread broke ! i now see doing some searching here and elsewhere that the Rimmer lock washers are too hard to pull on to the spline what is the answer please I have a new tr

Thanks for the comments took these this morning. too p#ssed off last night the thread has gone in the middle. the other side was a different trunnion in that it was cross drilled for the split pin it was tight but useable this one is for the nyloc so not cross drilled may be different suppliers I can’t remember. as I say I have been gathering the bits for over a year to spread the cost. some pics for your engineering perusal I was just too ham fisted