Background:� I have two front axles to work with.� The original is a Dana 25, but I have a D27 as well.� I'm reinstalling the D25, for various reasons.
The D25 came with Rzeppa joints, while the D27 has Spicer/Cardan joints.� (It's substantially newer.)
Now, here are the spindles out of the D25.

Notice that the one on the right is a bit chewed up?� But that's right where the grease seal rides on it.� That can't be good, can it?
Now, the 27's spindles are a lot smoother in that area.� So I was thinking I'd use those.� The spindles, I believe, are the same.� It's just that the bushings are different.
Bushings on the D25:

And on the D27:

The weird thing is that Walcks sells the same bushing for use with Rzeppa or Spicer shafts, and a different one for the Bendix shafts.� Since neither of these has Bendix, why are they different?� But most importantly, can I use the D27 spindles with those bushings with my D25 and its Rzeppa shafts?
And just to throw a wrench in the works, here's the inside of one of those D27 bushings--it's all scored up.� (The other one, and both the D25 bushings, are clean.)� Does this matter?

How difficult would it be to press the bushings out and switch the D25 bushings to the D27 spindles?� I have a press, but I don't want to damage anything... Or can I just use the D27 spindles as is (i.e. with the scoring on the inside of the bushing)? Or should I use the D25 spindles as is (i.e. not worry about the sealing surface--after all grease is pretty thick)?
Thanks,
-Paul