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-   -   Change the differential (https://5series.net/forums/e60-e61-parts-accessories-mods-22/change-differential-31756/)

hollywoodtrash 05-25-2007 02:30 PM


Originally Posted by vegastrashed' post='428348' date='May 25 2007, 03:05 PM
Just got word back that RDSport has the ring and pinion. I was also asked if I want to get the 4.1 with LSD! I told Darwin to get quotes for 4.1 and 4.1 with LSD. Stay tuned. If all the numbers work this is going to happen quickly.

THanks for the info VT. Make it happen.

vegastrashed 05-25-2007 02:38 PM

Yeah, it's going to happen and afterwards you and me, bro. I'm going to open a can of whoop azz on your 550i. HAHAHAHHA

info@trinityautosport 05-26-2007 10:55 AM

what about the I6's, the 530's? :whistle:

vegastrashed 05-26-2007 11:29 AM

I don't see a reason why the gearing can't be changed out from a Step to a higher number. That's all I'm going to do on my SMG.

AlexFW 05-26-2007 11:35 AM


Originally Posted by vegastrashed' post='428329' date='May 25 2007, 11:06 PM
Reviving the thread. :)

I was at CarLab, a tuning shop, in San Jose a few days ago. Darwin floated the possibility of changing the final drive ratio from 2.93 to 4.1. He mentioned that all that needs to be replaced is the ring and pinion. That there would be no need to swap out the existing diff for another one. Is this feasible and if so, where do I pick up the ring and pinion from? Maybe bimmerworld.com?

I'm sure AlexFW will be happy to hear someone else is wanting to change the final drive ratio. I'm back to modding again. :D


4.1 would be crazy ... Don't make it!
I would like to pass from 2.93 to 3.15 or 3.23 (-8% or -11%) .

Bimmerworld has 3.15, 3.23 for $1000 . I think I will go with 3.15, because I have to travel to 140-150 kmh on the highway .
Vegas, I suggest 3.46, for who live in US .

AlexFW 05-26-2007 11:38 AM


Originally Posted by vegastrashed' post='428622' date='May 26 2007, 09:29 PM
I don't see a reason why the gearing can't be changed out from a Step to a higher number. That's all I'm going to do on my SMG.


diffsonline.com told me that on SMG the swap is possible, on the steptronic they weren't sure .
And RD confirmed for SMG .

Vegas, when will you make it ?
I think after the summer, with 3.15 and LSD by Birds UK (check the thread some days ago) .

vegastrashed 05-26-2007 01:51 PM


Originally Posted by AlexFW' post='428625 (Post 428627)
diffsonline.com told me that on SMG the swap is possible, on the steptronic they weren't sure .
And RD confirmed for SMG .

Vegas, when will you make it ?
I think after the summer, with 3.15 and LSD by Birds UK (check the thread some days ago) .

It's going to happen within the next two weeks. Guaranteed.

AlexFW 05-26-2007 02:05 PM


Originally Posted by vegastrashed' post='428648' date='May 26 2007, 11:51 PM
If anything, I'll drop to a 3.91.
It's going to happen within the next two weeks. Guaranteed.

Ehehe, great vegas, you are the best!

Blackonblackonblack 05-27-2007 02:50 AM


Originally Posted by vegastrashed' post='428648' date='May 26 2007, 04:51 PM
If anything, I'll drop to a 3.91.
It's going to happen within the next two weeks. Guaranteed.


So VT, what does this do to your top end?

my530i 05-27-2007 05:57 AM


Originally Posted by Blackonblackonblack' post='428767' date='May 27 2007, 03:50 AM
So VT, what does this do to your top end?

At the top end, we're going to kiss his ... :whistle:


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