Thread: 128i LSD Q/A
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      05-22-2022, 07:14 AM   #90
Lenk42602
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Drives: 2009 BMW 135i
Join Date: Oct 2020
Location: Pittsburgh, Pa

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digging this up looking to get absolute confirmation on drive shaft spline compatibility between 128i MT and 135i AT


Quote:
Originally Posted by gixracer View Post
Unfortunately a 128 front does not match to a 135 in the splines. They are 1.5mm larger on the 135 side. and you will not be able to tell till you have trashed both ends. i made that mistake when I did my swapon my 328/335 n55 wagon.
So this guy says the splines aren't the same between a 128MT / 135iAT driveshaft.

He cites his swap experience, which was a 335i AT/135i MT - different than the 128/135 compatibility.
Appreciate 0