Quote:
Originally Posted by Tantibus
Hi guys!
I have a question in relation to the differential ratios on the f32 models.
I’ve blown my rear differential and was wanting to source another one, but the ratios are different.
There’s a 3.15 and a 2.81 ratio. I was wondering if there’s a way to find which one can be used without looking at the diff under the car and what each of them are for?
It’s a 2015 420i, auto gearbox and n20 engine.
If someone can help, it would be a huge help!
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Getbmwparts is a good source for correct part numbers too