cv axel question

will the axel from a 90 si with a d16 fit a cx with a d15??

it should,being that a 1.6 block (90 si) can bolt up to a 1.5 tranny (assuming 92 cx),all you would haft to do is look at the axel fitment near the transmission,on which ever side you were planning on replacing it & seeing if it looks the same,its not that hard to get to.

it wouldn't matter if it's a D16 or D15, the axle goes into the tranny not the engine. As long as it's a D series tranny and your hubs have the same spline count then it should fit.