rear CV shafts/axles

[twinspool]

Question for the masses - Are all CV Shafts the same on our trucks, specifically the rear?

I am getting conflicting information during my research... RealOEM (which is Bible) indicates all e53 X5's whether 3.0d, 4.4i, 4.6is and 4.8is have the same P/N 33207500917..

However, Turner motorsport is saying this does not fit my model (2006 4.8is) when using the P/N and confirming my model. It is also a GKN product, which I believe is the OEM maker just with BMW branding..

appreciate the feedback!

[andrewwynn]

I have heard of a variation but that people have modified to fit I forgot what the difference was. Use advanced search on xo to try to find the thread describing the mod.

[andrewwynn]

This is the part I find for 4.6



This is the part I find for my car.

It looks like with manual transmission it shares the part with 4.6.

By measuring the shaft diameter you should be able to confirm which part you have/need.

[andrewwynn]

Oops I misread you have 4.8.



Checking on 4.8 seems to be same as 4.6. Took this pic to show where the LK measurement is taken

[twinspool]

I may have to just go out and measure..

I read somewhere here that the earlier versions had the smaller DIA axles and they were bumped up shortly after..

[andrewwynn]

My read is the 3.0 auto have the smaller CV.

[Attacking Mid]

I'm convinced the E53 was a mess when it came to axles. My 04 3.0 had OE front axles, but one was the smaller and one was the larger diameter. Really odd. As suggested, I think you're going to have to measure.

AM.

[Fifty150hs]

Originally Posted by andrewwynn

I have heard of a variation but that people have modified to fit I forgot what the difference was. Use advanced search on xo to try to find the thread describing the mod.

From reading Bentley when I did my rear axle, it seems there are two different types of bolts. One type is different than the other.

[andrewwynn]

I'm remembering a little more: it was a guy swapped differential and needed to modify the output flanges or similar to work with existing CV

[twinspool]

Originally Posted by andrewwynn

I'm remembering a little more: it was a guy swapped differential and needed to modify the output flanges or similar to work with existing CV

i wonder if that was due to different gearing?