[bluewater328]

Just playing this through my head: Gonna replace rear springs with a new set of Eibach Pros. Currently have sport springs back there and all new Bilsteins and upper and lower mounts from last install.

Any reason I can just support the rear lower control, unscrew the bolt to the knuckle and then replace the spring; then carefully realign and drop the shock into place (leaving it attached at the upper mount)?

[mawzi]

Originally Posted by bluewater328

Just playing this through my head: Gonna replace rear springs with a new set of Eibach Pros. Currently have sport springs back there and all new Bilsteins and upper and lower mounts from last install.

Any reason I can just support the rear lower control, unscrew the bolt to the knuckle and then replace the spring; then carefully realign and drop the shock into place (leaving it attached at the upper mount)?

Yes, you should be fine. Here are my notes from last installation:

Replace springs:
-put lift under control arm
-remove lower control arm bolt (21 mm)
-lower lift
-pull arm down, and remove spring
-replace rubbers if needed
-put spring, and raise with a lift. Need to raise pretty high for the bolt to go in comfortably
-install lower control arm bolt
-remove lift

[Phyrexia]

Yeah you can do this. I had to do it when I realized I'd installed the lower spring mount incorrectly on one side.

[juld0zer]

The bolt going through the knuckle can be stubborn to reinsert. You may need some screwdrivers and prybars to encourage it

[feuer]

I do it without removing anything but requires a specialty tool, commonly used on Benz.

[bluewater328]

Originally Posted by feuer

I do it without removing anything but requires a specialty tool, commonly used on Benz.

Care to share for reference?

Is it basically like bmw's internal type spring compressor?

[juld0zer]

Literally is. Innerfederspanner. Universal ones are available but much dearer than a pair of the claw type front compressors

[feuer]

Originally Posted by bluewater328

Care to share for reference?

Is it basically like bmw's internal type spring compressor?

Correct! I have Benz specific but works on the BMW just fine. Like this: https://www.ebay.com/itm/For-Mercede...AAAOSworNcNi56

[Phyrexia]

I didn't have to compress my rear springs at all. I was able to unfasten the lower shock mount and pull the LCA down enough to simply remove the spring.

[bluewater328]

Originally Posted by Phyrexia

I didn't have to compress my rear springs at all. I was able to unfasten the lower shock mount and pull the LCA down enough to simply remove the spring.

He's talking about not even having to do that if he compresses the spring in place and just removes/replaces.

[Phyrexia]

Originally Posted by bluewater328

He's talking about not even having to do that if he compresses the spring in place and just removes/replaces.

Ah I understand now. My spring compressor is a different style than the one linked up there. Two threaded rods instead of one. I'm not sure if I could have reached both nuts with my unit. (....)