What else should i replace??

[ian e30 318is]

I am getting new springs in a few weeks. I already have bilsteins, but i am wondering what else i should replace while I have the wheels off and the springs out??

[euroshark]

It's hard to say without knowing the condition of your other suspension pieces, but I would count on possibly doing the control arms if the ball joints are getting worn or if the dust boots are torn, possibly the control arm bushings, sway bar links... Rear shock mounts are a good thing to do if you've got everything out since they are notoriously weak in the E30s.

[ian e30 318is]

yea im not sure what the condition of parts are since i havent looked yet.

[Fanzotti]

Here's my parts list for what I plan to re-do when I do my suspension re-build, some parts are not directly connected to the suspension such as the motor mounts but I'm doing them while it's all apart, any additions or suggestions would be welcomed:

Front strut
-New front strut mount cap cover
- 32mm cap:P/N-31 31 1 139 453

*Please double check this I believe it is the right size for my car, the other option is…

- 28.5 mm cap:P/N-31 33 1 124 335

-Sachs/Boge Front Strut Bearing/Mount:P/N-31 33 1 139 452

Control Arms
-Lemforder Left control arm with ball Joint:P/N-31 12 1 127 725

-Lemforder Right control arm with ball Joint:P/N-31 12 1 127 756

-Lemforder Solid rubber offset racing control arm M3 Bushing:P/N-31129061222

Tie Rods
-Lemforder Left tie rod complete assembly:P/N-32 11 1 125 186

-Lemforder right tie rod complete assembly:P/N-32 11 1 125 186

-Tie rod/Steering Rack dust boots:P/N-32 11 1 127 104

-Tie rod/Steering Rack dust boot clamps:P/N-32 13 1 094 100

Rear Shock Mounts
-2 pc: RSM e46 M3 convertible rear mounts:P/N-33 52 6 754 096

-2 pc: RSM z3 reinforcement plates:P/N-51 71 8 413 359

-2 pc: RSM gaskets:P/N-33 52 1 128 734

-4 pc: RSM small mount nuts:P/N- 33 52 1 137 360

-OEM Boge/Sachs:P/N-33521128819

Subframe
-Lemforder Rear Subframe Bushing OEM Rubber:P/N-33 31 1 129 144
- OE Corteco

Trailing Arm
- Sachs/Boge Rear Trailing Arm Bushings:P/N-33 32 9 061 945 –

or I may use

-Rear Eccentric Trailing arm bushings:P/N-33 32 9 058 822-

Differential
- Rear differential mount- OE Corteco:P/N- 33 17 1 135 242 –

Wheel bearings
*please check P/N’s- I am unsure?
- rear wheel bearings:P/N-?- 33 41 1 468 747
Or: P/N-?-33411130617
- Front wheel hub assembly - 31 21 1 468 752

Brakes
-Brake front re-build kit: P/N-?
-Brake rear re-build kit: P/N-?

Engine Mounts
E12 530i or 528i Engine mounts:P/N-?

Transmissions Mounts
E21 Transmissions Mounts:P/N-?

[ian e30 318is]

damn!! haha. thats a long list. im just thinking about replacing a few things. Of course the springs but maybe a few other things such as control arms, bushings, etc. im not trying to make a track car. just wondering what gets warn the quickest on a 16 year old car. i was thinking about doing control arms and control arm bushings. Has anyone used or heard about the treehouse bushings?? how are they compared to the upgrade control arm bushings??

[Fanzotti]

That list is pretty much what your looking for, these are the parts that get worn on a 16 year old car. This is by no means race car parts. Other than the shocks and springs these are OEM parts. I would replace all of this just to make the car safe for the road.

[taylor89]

Sorry to bring up an old thread, but does anyone know if these part #s are pretty much standard on all e30s or do I have to look them all up for my 86 es?

[Van Westervelt]

Most all parts are standard across the board as far as the ones he lists.