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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > All-Wheel-Drive (Xi / xDrive) Talk > Rear end of my 328xi hops over road imperfections while turning at speed. Bushes/bush



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      05-28-2021, 12:57 PM   #1
pizza_nightmare
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Hey all, thankful for this forum!

Three years ago my indie mechanic installed FCP Euro's six piece front control arm kit and things seem to be fine and tight up front.

I've got new springs and shocks (B8s and Eibachs) at all for corners. Since then I've noticed my rear feels unstable at speed (above 25 while turning over bumps and whatnot). The rear feels like it hops or wags side to side.

I know my rear bushes/bushings are shot because my car has 170,xxx miles.

Thinking about getting this
[IMG][/IMG]

https://www.fcpeuro.com/products/bmw...iece-lemforder

I've got basic tools and jackstands. Could anyone reply who have remedied a similar issue?

I posted to the XDrive forum to avoid the "upgrade to M3 parts!" comments, but I might post to the general forum as well.

Thanks!
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      05-28-2021, 01:04 PM   #2
Skoidat69
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Quote:
Originally Posted by pizza_nightmare View Post
Hey all, thankful for this forum!

Three years ago my indie mechanic installed FCP Euro's six piece front control arm kit and things seem to be fine and tight up front.

I've got new springs and shocks (B8s and Eibachs) at all for corners. Since then I've noticed my rear feels unstable at speed (above 25 while turning over bumps and whatnot). The rear feels like it hops or wags side to side.

I know my rear bushes/bushings are shot because my car has 170,xxx miles.

Thinking about getting this
[IMG][/IMG]

https://www.fcpeuro.com/products/bmw...iece-lemforder

I've got basic tools and jackstands. Could anyone reply who have remedied a similar issue?

I posted to the XDrive forum to avoid the "upgrade to M3 parts!" comments, but I might post to the general forum as well.

Thanks!
I would look into a rear sway bar as it should help turning body roll and hop
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      05-28-2021, 03:49 PM   #3
pizza_nightmare
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Quote:
Originally Posted by Skoidat69 View Post
Quote:
Originally Posted by pizza_nightmare View Post
Hey all, thankful for this forum!

Three years ago my indie mechanic installed FCP Euro's six piece front control arm kit and things seem to be fine and tight up front.

I've got new springs and shocks (B8s and Eibachs) at all for corners. Since then I've noticed my rear feels unstable at speed (above 25 while turning over bumps and whatnot). The rear feels like it hops or wags side to side.

I know my rear bushes/bushings are shot because my car has 170,xxx miles.

Thinking about getting this
[IMG][/IMG]

https://www.fcpeuro.com/products/bmw...iece-lemforder

I've got basic tools and jackstands. Could anyone reply who have remedied a similar issue?

I posted to the XDrive forum to avoid the "upgrade to M3 parts!" comments, but I might post to the general forum as well.

Thanks!
I would look into a rear sway bar as it should help turning body roll and hop
Quote:
Originally Posted by Skoidat69 View Post
Quote:
Originally Posted by pizza_nightmare View Post
Hey all, thankful for this forum!

Three years ago my indie mechanic installed FCP Euro's six piece front control arm kit and things seem to be fine and tight up front.

I've got new springs and shocks (B8s and Eibachs) at all for corners. Since then I've noticed my rear feels unstable at speed (above 25 while turning over bumps and whatnot). The rear feels like it hops or wags side to side.

I know my rear bushes/bushings are shot because my car has 170,xxx miles.

Thinking about getting this
[IMG][/IMG]

https://www.fcpeuro.com/products/bmw...iece-lemforder

I've got basic tools and jackstands. Could anyone reply who have remedied a similar issue?

I posted to the XDrive forum to avoid the "upgrade to M3 parts!" comments, but I might post to the general forum as well.

Thanks!
I would look into a rear sway bar as it should help turning body roll and hop
Hmm I think I need to remove to the aging rubber suspension bits and replace them with new pieces before I think about a thicker sway bar which I don't even know if they make for XDrive, but I see where you're going with this.
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      05-28-2021, 04:46 PM   #4
Skoidat69
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Quote:
Originally Posted by pizza_nightmare View Post
Quote:
Originally Posted by Skoidat69 View Post
Quote:
Originally Posted by pizza_nightmare View Post
Hey all, thankful for this forum!

Three years ago my indie mechanic installed FCP Euro's six piece front control arm kit and things seem to be fine and tight up front.

I've got new springs and shocks (B8s and Eibachs) at all for corners. Since then I've noticed my rear feels unstable at speed (above 25 while turning over bumps and whatnot). The rear feels like it hops or wags side to side.

I know my rear bushes/bushings are shot because my car has 170,xxx miles.

Thinking about getting this
[IMG][/IMG]

https://www.fcpeuro.com/products/bmw...iece-lemforder

I've got basic tools and jackstands. Could anyone reply who have remedied a similar issue?

I posted to the XDrive forum to avoid the "upgrade to M3 parts!" comments, but I might post to the general forum as well.

Thanks!
I would look into a rear sway bar as it should help turning body roll and hop
Quote:
Originally Posted by Skoidat69 View Post
Quote:
Originally Posted by pizza_nightmare View Post
Hey all, thankful for this forum!

Three years ago my indie mechanic installed FCP Euro's six piece front control arm kit and things seem to be fine and tight up front.

I've got new springs and shocks (B8s and Eibachs) at all for corners. Since then I've noticed my rear feels unstable at speed (above 25 while turning over bumps and whatnot). The rear feels like it hops or wags side to side.

I know my rear bushes/bushings are shot because my car has 170,xxx miles.

Thinking about getting this
[IMG][/IMG]

https://www.fcpeuro.com/products/bmw...iece-lemforder

I've got basic tools and jackstands. Could anyone reply who have remedied a similar issue?

I posted to the XDrive forum to avoid the "upgrade to M3 parts!" comments, but I might post to the general forum as well.

Thanks!
I would look into a rear sway bar as it should help turning body roll and hop
Hmm I think I need to remove to the aging rubber suspension bits and replace them with new pieces before I think about a thicker sway bar which I don't even know if they make for XDrive, but I see where you're going with this.
I have an E91 xdrive which has front and rear sway bars with white line RSFB inserts…if you are going to do a rear sway bar, you can do rear subframe bushing inserts ($50)
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