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Thread: RTAB replacement, can I swap springs at same time?

  1. #1
    Join Date
    May 2011
    Location
    Sacramento, CA
    Posts
    41
    My Cars
    5/92 BMW 325is

    RTAB replacement, can I swap springs at same time?

    I'm going to have to replace the RTABs. At 280k miles, I know they need it

    For cost reasons, I am only doing the RTABs for now. I'll be saving my quarters toward replacing all other bushings in the rear.

    I've got a set of M3 springs I was going to swap in and was wondering if during the RTAB replacement, is it simple to swap in springs at the same time? Did I need to unbolt more than the rear trailing arm at the chassis?

    Also, is it worth installing the RTAB limiters? I've seen them mentioned and the squeaking issue.

  2. #2
    Join Date
    Jun 2009
    Location
    washington dc
    Posts
    8,679
    My Cars
    Avus Cosmos Calypso!
    you may have to disconnect the rear sway bar to let the trailing arm hang lower without undoing the rtab trailing arm. If you loosen the arm only I think it would provide enough clearance to do the spring swap. If you loosen both then for sure it would be enough clearance. Of course for either you want to loosen up the bolt at the bottom of the rear shock.

    Limiters are good with stock rtabs. If you want less work try the poly rtabs. I have AKG blue 80A rtabs for sale if you're interested. Double check everything before you swap the springs. Don't get hurt! Good luck!

  3. #3
    Join Date
    Jun 2007
    Location
    Wisconsin
    Posts
    11,751
    My Cars
    98 328IS 03 325xi
    To replace rear springs you only have to unbolt the shock at the bottom. Hook a breaker or pry bar on the trailing arm, push down with one hand and pull the spring out with the other. Up on jack stands with the wheel off obviously.

    Gave away my BMWs, driving a VW and an Audi now.

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