Yes top one OE spec I think I had to saw the yoke off as I could not get the pin out
I have had another look at both shafts the OE one has 24 splines and is 1.034" (about 0.003" over 1 1/32") sounds about right for an interence fit! and the main shaft looks like hot drawn bar(rough) 1.044" Dia
The pattern one is 1.110" = 28 mm Dia and 25 splines and they are deeper the whole lenght of the shaft has been turned down to 1.044"?
So was it hot rolled or bright drawn bar?
I tried the file test on both and I can just mark the pattern one but not the OE one (needle file)
I have driven the roll pin out of the other yoke(not very tight) I tried to press one out of and old drive shaft with the hydraulic press with no luck.
Looking at the red rust on it I think the other drive shaft may be coming loose as the rust is the same as failed one!
I have fitted a 6 mm 8.8 bolt in it for now that has got to be better than a roll pin?
also provides a good question for CDD about how theirs is fitted/secured.
Might be interesting to find out from @GT6Steve what he used to do as if I remember correctly I found a thread where he used to get sets manufactured.
You are correct.
I have had another look at the shaft this morning and the spline end does not look to clever to me either! what do you think?
Would you mind if I pm,d you with a copy of the complaint I am going to prepare and send to the suppliers?
I want to state all our concourns but not be Confrontational etc