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      05-17-2019, 09:22 AM   #10
Sail Boat
Private First Class
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Drives: M235i
Join Date: Aug 2017
Location: Nashville, TN

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I COULD BE WRONG! Here are my thoughts:

The M240i and M235i share the same rear subframe/axle carrier for both automatic and manual cars. P/N 33316792505

The F30 335i and F30 LCI 340i share the same subframe/axle carrier for both automatic and manual cars. P/N 33315792506

They also share the same output shafts (axles) Left 33207597685, Right 33207597686

Topping it off, the M240i and 340i share the same LSD part number.

Considering the above, specifically that the 335i/340i rear subframes are the same and the 340i/M240i LSD's are the same part number? why wouldn't the 335i differential fit on the M235i/M240i/340i?

Regarding final drive, there are a couple people on this forum that have played with different rear end ratios from diffsonline without issue.
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