XSeries-forum

Hello everyone  i got problem with my BMW X5 front diff its broken and got hole in case is anyone got diff for sale with 3.91 ratio?
its all ready taken off just need good one to put back.
Many thanks Dainis.

Hi dainis
I also had this problem only it was my rear diff that broke (also a 3.91) after shopping around and finding out a replacement 3.91 was possible to get the cheapest I could get was around £750 so I bought a front and rear 3.73 for £400. When I had all changed I thought I'd sell the good front 3.91 so i opened it to check gears before I'd advertise, upon opening I found that a few of the teeth are damaged. It would still work but I wouldn't guarantee it and if you are wanting a long term fix then I wouldn't advise using it but it's yours if you want it.

Regards Alan

generous offer, perhaps a good diff could be produced out of the pair. sometimes you just get lucky and different bits are bent or broken