I put both the CV joints and the output shaft flanges on a surface plate with a sheet of 600 grit sandpaper and gave piece a couple of swipes. The mating face of each is cupped, not flat. I was surprised that they were not flat also, thus my post. The output shaft flanges are new so distortion...
I need to add a spacer in between a CV joint and a transaxle output shaft drive flange and I am wondering what the best face design of the spacer is, flat or cupped. I noticed that the "flat" surface on a factory CV joint appears to be slightly cupped or dished. It is this surface that mates...