My 2005 BMW X5 3.0D and the rear diff

[Fuzzy-19]

Good morning, 

been a while since been on so i will apologise to start, please if this is in wrong place please move don’t delete

my rear diff has started making death noises 😢😭 and prices for 2nd hand are still out my range at the moment 😭😭 is there another bmw i can use the rear diff from or is it X5 only? The ratio is 3.91 

as always all help and info is extremely appreciated 

thanks for taking the time to read my post 🙏

[Greydog]

Hi Paul

The X5 3.91 diffs are like Rocking horse stuff to find, hence the silly prices. How ever I did read of someone on another forum who brought 3.15 front and rear diffs for less than the cost of a 3.91 and changed front and rear with no issues

There are rebuild kits but they do tend to be similar in cost to replacement diffs the benefit is you know the condition of all parts when you have rebuilt it yourself.

Dave