Solid Everthing

doublespaces

Administrator
Oct 18, 2016
9,303
4,331
0
AZ
Ride
2009 E93 335i
That is the correct cover however it's my understanding that the 650i cover will only fit the large diff, my car is mt.

I've already priced out a 215 AT diff, however there is also a difference in the drive shaft which means I may require a custom unit or a modified unit.

I assume the mounts are different? What about the subframe, is there any difference manual/auto?
 
Last edited:

PC Racing

Private
Mar 13, 2017
49
32
0
Ride
BMW 135i
I've already priced out a 215 AT diff, however there is also a difference in the drive shaft which means I may require a custom unit or a modified unit.

I assume the mounts are different? What about the subframe, is there any difference manual/auto?
Mounts and subframe is the same from auto to mt.
 

camberadam

Sergeant
Feb 15, 2017
257
106
0
Baltimore
Ride
Tasmin Green e92
If you're shopping components w/ spherical bearings or rod ends pay attention to the liner material. Nylon doesn't last long. Kevlar is slightly better. Anything w/ an exposed joint will get slop within a few months. When we narrowed the track width on my last project, I needed to increase joint angles to regain lift & learned the differences after replacing tierods I converted to spherical rod end.
 
  • Like
Reactions: PC Racing

PC Racing

Private
Mar 13, 2017
49
32
0
Ride
BMW 135i
IMG_1746.JPG
IMG_1749.JPG
IMG_1751.JPG
IMG_1753.JPG
IMG_1757.JPG
IMG_1854.JPG


The sub frame is in the car and the front control arms have been installed. I also decided to do the m3 rack at the same time.
 
Last edited by a moderator:

PC Racing

Private
Mar 13, 2017
49
32
0
Ride
BMW 135i
IMG_1782.JPG
IMG_1784.JPG
IMG_1790.JPG
I also went ahead and made simple diff lock down while I had the sub frame down. I don't think this was needed with the solid bushings but it can't hurt.
 

Torgus

Brigadier General
Nov 6, 2016
2,671
2,193
0
Boston
Ride
ACF 6466 E92 + METH
View attachment 3558 View attachment 3559 View attachment 3560 I also went ahead and made simple diff lock down while I had the sub frame down. I don't think this was needed with the solid bushings but it can't hurt.

I did the same. It can't hurt. Small money if it helps.

I was always concerned with the diff cooling fins as they sit lower. If a cooled diff is needed an external cooler with a pump might make the most sense. Granted it is much more complicated.
 

regbf99

Lurker
Nov 21, 2018
17
5
0
Bavaria
Ride
BMW e92 335i N54
Hi,
sorry, my english is not the best, so I´m not realy sure whats the right name of this bushings.
Are this bushings the "Polly Lower Inner" on your list?
Where do you get them and are you satisfied with them?

Unbenannt.jpg
 

martymil

Major General
Sep 6, 2017
3,331
1,906
0
Down Under
Ride
S65 1m
See where I circled in yellow watch these bolts very closely as they tend to come loose, bend and snap off .

Only the ones supported on one side.

Running spherical bearings on the road is not a good idea, I had it snap off 3 times when running around 600hp.
 

Attachments

  • IMG_1757.JPG
    IMG_1757.JPG
    392.1 KB · Views: 121

amg6975

Sergeant
Oct 27, 2019
278
184
0
Ride
2012 135, 2005 ZHP, 2009 fJCW
I know the part number is different since it has better bushings. What's different about it other than that?

Edit
Yea, your right it appears the rear diff mount is different. I guess that would be nice if I didn't already have an lsd for the 135i diff.

I'm pretty sure at least one of the suspension mount points is different as well.