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3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.

 
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#1 (permalink) Old 02-28-2009, 12:08 PM
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Question spring swap

anyone know how to swap the rear springs on a 1987 325is? My book says to disconnect the final drive rubber mout push it down and hold it down with a wedge. Is this the piece that attaches to the wheel , is it attached to the rear diff. or am I totally off base.been pondering this for an hour now. i just don't want to mess something up while fixing something else. Thanks, Blazein
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#2 (permalink) Old 02-28-2009, 05:11 PM
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with a spring compressor i never had to mess with the diff at all.. just disconnect the sway bar end link and unbolt the top of the shock absorber, so you get a little more suspension articulation.. but make sure it doesnt go so far down that it pulls on the brake line.

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#3 (permalink) Old 02-28-2009, 08:54 PM
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yeah, that seems right to me...question is, why do you need to swap rear springs out? Is one broken? To simply replace a rear spring seems odd.....
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#4 (permalink) Old 03-01-2009, 12:45 PM
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The reason for the spring swap is we are putting on some new Vogtland lowering springs. We have already done the front Ha ha ha the first side took 4 hours the other was done in about 45 min. thanks for the info we will try to compress the springs in place it just didnt appear that there was enough room. Blazein
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#5 (permalink) Old 03-02-2009, 12:09 AM
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I just replaced my rear springs and took less than 1.5 hours. You need to take the following steps:

1. Disconnect lower shock bolt
2. Disconnect sway bar link
3. Release emergency brake

This should be sufficient on both sides to remove the springs if you have aftermarket springs installed already. I would try these steps first.

If you still need to lower the arm more, you may need to disconnect the bolt differential carrier bolt (make sure you have a jack supporting it) to allow the differential to be lowered a bit. You may need to take the support bands off of your muffler to provide more room to lower your axle (Note: I did not have to do this to remove the HR OE sport springs). You do not need a spring compressor to remove the rear springs.

Good luck.
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#6 (permalink) Old 03-03-2009, 06:55 PM
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Talking Oh My

Thanks, I asked my son if the E brake was on ... Yea dad I pulled it really hard for extra safety. Ill bet thats why we cant get the stockers off. We are both sitting here laughing and wagging our heads , Thanks Blazein
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