front diff

[aido1956]

Hi all any info on the compatibility of a front diff from a 2015 d4 3 ltr and a 2.7 2009 d3. and how do i find the ratio stamped on the center cheers

[Graeme]

IIRC the 8-speeds were fitted with higher ratio diffs.

[loanrangie]

2.7 D3/4 has 3.54 ratio , 8 spd D4 has a 3.21 ratio so not compatible. Petrol D3 has 3.71 so they cant be used either.