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General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

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Old 01-09-2009, 02:02 PM   #1
Hopbach
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Exclamation 3.46 swap Help

i just recieved my 3.46 diff. are the drive axle flanges (diff side) interchangeable? my original has 2 bolts close together then big space then another two close together and so on. the flanges which came on the 3.46 have 6 equally spaced thread holes. can i pop the original out and pop it back in to the new 3.46? Ne info is greatly appreciated. Thanks.
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Old 01-20-2009, 04:23 PM   #2
Knight2424
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Yes...
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Old 01-20-2009, 04:42 PM   #3
Alex323Ci
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when you say drive axle flanges, do you mean the input or the two output?
yes, they are interchangeable. the single input is very important that it be put on and measured to spec. if not the pulling on the pinion gear will make your diff's gears wear and go out very prematurely. after that point it's toast and cheaper to buy another diff.
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Old 01-20-2009, 05:31 PM   #4
NightWolfe
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The output flanges just pop off .. you'll probably bend the little dust cover a bit but don't worry about it
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