Quote:
Originally Posted by Cody4130
Thank you for this thread!
My rear end started clicking badly today. I came across this thread and it inspired me to put the M diff in my 08 4.8i.
From reading this I gather all I have to purchase are 2014+ Rear cv axles as the ones in my 08 won’t work with the M diff flanges? New Axles the only thing I need correct? (If I just want to run it open) I may at a later date figure out what voltage it needs to lock the clutches for more winter traction and put it on a switched relay.. I got the M diff for less than half the price of the failure prone 4.8i diffs. Even with buying new axles I’m way ahead and have a more reliable rear end.
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On my setup I swapped diff flanges to accommodate the F85 axles since I stared with an E71 diff. The best advice I can give you is to hop on RealOEM.com and look up the parts to confirm specs.
Make sure the driveshaft is the same length, check the diff mounting bolts are the same, and depending what flanges are on your diff -get axles to match. Once this is confirmed you should be good to go.