Tailshaft Compatibility?

[GK]

Hi E Seires guys,

This is my first post here (I hang out on the AU site) but I need some advice from you guys if you please.

This was formerly posted on the AU site, but I didn't get much response. I hope you may be able to help me.

I may need to change my tail shaft (funny vibrations at highway speeds - vibes felt in transmission tunnel).

Both the auto trans guy and my mechanic suggested changing one over to see if the vibes cease. Both blokes also agree that it's not wheel bearing noise, OR transmission vibes, OR diff related.

The trans guy suggested using an EF/EL one as they are much more robust, being a little heavier/thicker etc. This is because I changed the shaft late last year, but some of the vibes persisted, and are getting worse.

Do they change straight over? My understanding is that they do, but the EF/EL ones are heavier and more robust. Will using a heavier shaft have any adverse consequences on the other drivetrain components?

I've been told that it won't but does anyone have a definitive answer?

Just in case, my mechanic is bringing 2, one E series and an AU one, just to be sure.

What are your thoughts?

Cheers everyone.

GK