XSeries-forum

Hi this is my first time posting and I am after some advice.  My rear diff which is a 3.91 ratio has self destructed.  I am now struggling to find one for sensible money so my question is has anyone replaced both diffs with 3.64 or any other ratio diffs and if so and what model????

Many thanks Sharon

Yes it's been done on here 3.73 diff fitted instead I think, 3.9's are like hens teeth, do a search on the forum
They changed both front and rear to suit.