Suby axle and DOJ cv issue., 25 splines to the diff, 30 splines to the axle. What CV is this? Options

[ruby914]

I put a 02 WRX motor in my 914 and have a MY03 TY754VN2BA trans staged for transplant.
I needed inboard CV’s so I went down to the local pick-a-part and got CV’s off of a 99 Legacy.
One CV was green the other was black. More so the black had ball and cage, the green had the tri roller setup. Both CV’s had the 25 spline count so I felt all was good.
Next, I sent a set of 914 axles with the inner race from the black CV to a machine shop to have them re-splined to fit the inner CV race.
When I got them back they fit great. Problem is the green CV has a different spline count inside the CV. I didn't notice this before.
ID on the green is 9 SFJ 82 NTN A R 3 T 29 splines to the drive shaft "trunnion" (inner race).
ID on the black is DOJ 87 AC NTN 30 splines to the drive shaft.
So my axles were splined for the DOJ 87 AC
Was this a mistake? I have searched the net and can’t find what model cars these fit. Can’t tell if it was proper for the car it came from. I think not.
I would hope to have chosen something common.

Anyone have an idea what cars these come from?
I would like one more DOJ 87 AC to get the project moving.
Maybe I should I re-spline a 2nd set of axles to something more common?

I am a little confused here. I think it was after 04 that the CV had shafts to the trany and the inner race "trunnion" was 30 splines. Did any of you do axles for the 03 and what spline count did you use?

[rnellums]

I just got back from RRC in Moab, and on the way there I had one of the subie CV's come apart. I'm still not really sure how it happened, and nothing that I could see broke, it just came out of the plunge joint. Just wanted to relay that.

-Ross