4.10 DIFF for e46 M3

[bmw m3 s50]

Just realized this is a WTB thread nvm

Your looking to get back into a 4.10 diff?

[bmw m3 s50]

I'm also planning this upgrade, how did the 3.9/4.1 work for daily driving? Any experiences or advice for those thinking of this?

This varies from person to person, some people prefer the standard gearing to stay in gear longer. Others prefer the 3.91/4.10 gears.

I personally believe that the m3 should had come with 3.91 or 4.10 gears from the factory. 3.91/4.10 transforms the car. The always feels like it has power in every gear, pulls harder, and is great for the type of driving you do in this country. Yes, your top speed is reduced and you shifting sooner but harder pulls and the feeling of power in all gears is well worth it.

[Tbonem3]

Just realized this is a WTB thread nvm

[siamkazi]

I have had both 3.91 and 4.10 diffs in my m3. So this is not my first diff upgrade. None of them whined. Not sure what you mean by your whines.

I'm also planning this upgrade, how did the 3.9/4.1 work for daily driving? Any experiences or advice for those thinking of this?

[bmw m3 s50]

I have had both 3.91 and 4.10 diffs in my m3. So this is not my first diff upgrade. None of them whined. Not sure what you mean by your whines.

[slavik1988]

Whine will be inevitable with this diff. I have a 3.91 Dinan diff and it whines. Make sure you are okay with this before you commit.

[bmw m3 s50]

Hey guys,

Wanted to see if anyone had a 4.10 Diff with LSD for the e46 m3 that they wanted to sell. Maybe someone here is thinking of returning back to stock gearing. I have a stock diff if you need it that can be used as a trade with some cash on my end. Please be sure that the Diff in good condition without any issues or whine. If your interested please email me at bmwm3s50@aol.com and let me know. Thanks for your time.