I have a AT diff and MT diff question

farbmw · 01-19-2011, 07:31 PM

Hi all,

I was wondering if it was possible to put the AT 335i LSD(wavetrac) with the 3.46 gear ratio in a MT 335i with 3.08 ratio.

The AT final drive does not have the LSD in it yet, I can get a deal on a used final drive and then install the LSD in it and put in the MT 335i.

Would it work or would it need to be modified more?

If this already been answered in a different thread please post the link because I can't find anything on this.

Thanks for your help!

dzenno · 01-19-2011, 07:41 PM

far I'm pretty sure it's not an issue...if you went the other way it you'd probably need to update the 6AT tranny software

There are pros/cons to performance doing this...have you looked into those?

farbmw · 01-19-2011, 09:17 PM

Quote:

Originally Posted by dzenno

far I'm pretty sure it's not an issue...if you went the other way it you'd probably need to update the 6AT tranny software

There are pros/cons to performance doing this...have you looked into those?

I had the same thought, just needed to confirm my suspensions, thanks Bro!

Anyone else have a opinion or thoughts on this?

Bimmer This · 01-20-2011, 12:02 AM

Yes, you can install an AT differential onto your MT without any problems. It would probably gove you better acceleration because your ratio would be higher.

farbmw · 01-20-2011, 06:34 PM

Quote:

Originally Posted by Bimmer This

Yes, you can install an AT differential onto your MT without any problems. It would probably gove you better acceleration because your ratio would be higher.

That is the plan!

01-19-2011, 07:31 PM	#1
farbmw Brigadier General 436 Rep 4,502 Posts Drives: 2015 M4 6SPD MANUAL! Join Date: Aug 2009 Location: Toronto iTrader: (11)	I have a AT diff and MT diff question Hi all, I was wondering if it was possible to put the AT 335i LSD(wavetrac) with the 3.46 gear ratio in a MT 335i with 3.08 ratio. The AT final drive does not have the LSD in it yet, I can get a deal on a used final drive and then install the LSD in it and put in the MT 335i. Would it work or would it need to be modified more? If this already been answered in a different thread please post the link because I can't find anything on this. Thanks for your help! __________________ Have BT Tool professional, will scan and clear codes on your BMW. And now I am able to code my 2011 335is and M4 Link to my M4 euro delivery! http://f80.bimmerpost.com/forums/sho....php?t=1006526
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01-19-2011, 07:41 PM	#2
dzenno Banned 298 Rep 5,876 Posts Drives: Join Date: Feb 2006 iTrader: (1)	far I'm pretty sure it's not an issue...if you went the other way it you'd probably need to update the 6AT tranny software There are pros/cons to performance doing this...have you looked into those?
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01-20-2011, 12:02 AM	#4
Bimmer This Major General 107 Rep 6,473 Posts Drives: 2007 BMW 335i Join Date: Nov 2008 Location: Westminster iTrader: (3)	Yes, you can install an AT differential onto your MT without any problems. It would probably gove you better acceleration because your ratio would be higher.
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