M lower rear arms symmetry

[Rallysmurf]

So I'm on a quest to put lower arms and better adjustable shocks on the back of my 128i on the cheep.

I got a used left rear arm for $80 and am now looking for a right. Or am I?.....

Measuring they look symmetrical?

I am running a coil over on the shock body so all I am measuring is the two faces, and shock mount. They all are on the same center line.

Any confirmation on this?

Alex.

[NZM3AN]

Same part left and right...

https://www.realoem.com/bmw/enUS/sho...diagId=33_1230

Edit: actually, check that, M arms are different L/R, they're camber arms:

https://www.realoem.com/bmw/enUS/sho...diagId=33_1416

[Rallysmurf]

Well I found a right coming for my left. I really don't think there is anything different.

Part number only get you so far.

I'll carful measure and then fit backwards to double check.

The reason I am asking for this rally car I want to have spares and would only need one. It's always good to know what's possible when in need of a quick service.

[ShocknAwe]

I don't remember a difference when I installed mine. The only difference is literally the weight and damper lower mount position.

If you have AHL you'll need the HPA adapter.

[Suprgnat]

Originally Posted by ShocknAwe

I don't remember a difference when I installed mine. The only difference is literally the weight and damper lower mount position.

If you have AHL you'll need the HPA adapter.

IIRC it's just the machining for the headlight leveling sensor arm bracket.

[ShocknAwe]

Originally Posted by Suprgnat

IIRC it's just the machining for the headlight leveling sensor arm bracket.

Yep.

[Rallysmurf]

Originally Posted by ShocknAwe

I don't remember a difference when I installed mine. The only difference is literally the weight and damper lower mount position.

If you have AHL you'll need the HPA adapter.

I'm just doing the rear to get better shock mounts. And some impact strength I hope.

[One28i]

Originally Posted by Rallysmurf

So I'm on a quest to put lower arms and better adjustable shocks on the back of my 128i on the cheep.

I got a used left rear arm for $80 and am now looking for a right. Or am I?.....

Measuring they look symmetrical?

I am running a coil over on the shock body so all I am measuring is the two faces, and shock mount. They all are on the same center line.

Any confirmation on this?

Alex.

I have these on my 128i, solid upgrade, especially with the better direct damper connection. the left side or the driver side will have a spot for the sensor that measures position of the arm for stability. image attached, of what I got, the top is the left(driver side rear) and the bottom is the right (passenger side). I did notice the that there is an angle to the arms, for perhaps some anti drive/squat, not sure the right and left are can be swapped. just compare the stock pieces, you should be able to tell. I hope that helps?

[Rallysmurf]

I'm well on my way. Have a look at my build thread.