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Thread: Subframe and Diff Bushings

  1. #1

    Subframe and Diff Bushings

    At 115k miles today with suspension fully refreshed. I've had a few shops inspect the subframe and diff bushings and everyone says the are fine, but I was curious what others have seen for useful life for these parts? Also, what would be a reasonable number of hours for an indy shop to charge for all this? I'd just bring my own parts.

    Thanks

  2. #2
    Join Date
    May 2011
    Location
    Charleston SC
    Posts
    5,559

    Subframe and Diff Bushings

    All of my diff bushings were cracked at 80k and again at 145k. It's impossible to tell if they are cracked without removing the diff. and flexing the bushing.
    I can swap a diff in 2 hrs laying on the ground. Probably another hour or so to swap the diff bushings but a shop will probably go by the job book for the hours

    Dinan CAI &Throttle body, ESS Tuning TS2, Bimmerbrakes gen3 headers, UUC SSK & DSSR. Achilles oil pump, VAC oil pan baffle
    M3 Motor mounts, UUC Trans mounts, Modified clutch style LSD 3.15, TMS front subframe reinforcement, Koni Yellow sports,
    H&R sport springs,
    UUC sway bars, BMW Perf. Rotors, UUC SS brake lines, Hawk HPS pads, CSL replica wheels,
    Rotora strut bar, FXR HID conversion, M3 Mirror conversion, BSW stage 1 speakers

  3. #3
    Join Date
    Feb 2013
    Location
    Austin TX
    Posts
    4,814
    I was quoted 4.5 hours of labor to remove and replace the rear diff bushing. That is $441 plus the part.
    2005 IR / black / 6MT
    146,000 miles

  4. #4
    Join Date
    May 2011
    Location
    Charleston SC
    Posts
    5,559
    That would of been my guess...
    Dinan CAI &Throttle body, ESS Tuning TS2, Bimmerbrakes gen3 headers, UUC SSK & DSSR. Achilles oil pump, VAC oil pan baffle
    M3 Motor mounts, UUC Trans mounts, Modified clutch style LSD 3.15, TMS front subframe reinforcement, Koni Yellow sports,
    H&R sport springs,
    UUC sway bars, BMW Perf. Rotors, UUC SS brake lines, Hawk HPS pads, CSL replica wheels,
    Rotora strut bar, FXR HID conversion, M3 Mirror conversion, BSW stage 1 speakers

  5. #5
    So if ~4 is shop hours for diff bushings only...add 4 more hours to get the subframe bushings as well?

  6. #6
    Join Date
    May 2011
    Location
    Charleston SC
    Posts
    5,559
    A lot more is involved with replacing the subframe bushings but they aren't under the same twisting load as the diff bushings... mine are all ok at at 145k
    Dinan CAI &Throttle body, ESS Tuning TS2, Bimmerbrakes gen3 headers, UUC SSK & DSSR. Achilles oil pump, VAC oil pan baffle
    M3 Motor mounts, UUC Trans mounts, Modified clutch style LSD 3.15, TMS front subframe reinforcement, Koni Yellow sports,
    H&R sport springs,
    UUC sway bars, BMW Perf. Rotors, UUC SS brake lines, Hawk HPS pads, CSL replica wheels,
    Rotora strut bar, FXR HID conversion, M3 Mirror conversion, BSW stage 1 speakers

  7. #7
    Join Date
    Apr 2016
    Location
    Raleigh NC
    Posts
    86
    Quote Originally Posted by nsk040 View Post
    So if ~4 is shop hours for diff bushings only...add 4 more hours to get the subframe bushings as well?
    Yes that sounds about right. I just replaced my diff bushings and it took me 2 hours to do the job with the right tool. The subframe bushings are, in my opinion, much more difficult to replace.


    Sent from my iPhone using Tapatalk
    1980 320i - Kashmir Metallic - Sold in 1993
    1985 535i - Cosmosblau Metallic - Sold in 1995
    1985 535i - 1985-06 - Delphin Metallic - Sold in 2016
    1983 320i - 1982-09 - Kashmir Metallic - Currently own!
    2004 ZHP - 2003-08 - Titanium Metallic - Currently own!

  8. #8
    Join Date
    Apr 2016
    Location
    Raleigh NC
    Posts
    86
    Also my car has 150k miles on it.


    Sent from my iPhone using Tapatalk
    1980 320i - Kashmir Metallic - Sold in 1993
    1985 535i - Cosmosblau Metallic - Sold in 1995
    1985 535i - 1985-06 - Delphin Metallic - Sold in 2016
    1983 320i - 1982-09 - Kashmir Metallic - Currently own!
    2004 ZHP - 2003-08 - Titanium Metallic - Currently own!

  9. #9
    Join Date
    Apr 2016
    Location
    Raleigh NC
    Posts
    86



    Sent from my iPhone using Tapatalk
    1980 320i - Kashmir Metallic - Sold in 1993
    1985 535i - Cosmosblau Metallic - Sold in 1995
    1985 535i - 1985-06 - Delphin Metallic - Sold in 2016
    1983 320i - 1982-09 - Kashmir Metallic - Currently own!
    2004 ZHP - 2003-08 - Titanium Metallic - Currently own!

  10. #10
    Join Date
    Feb 2013
    Location
    Austin TX
    Posts
    4,814
    Your car looks good, charter21. You may want to post the pic here as well:

    http://www.zhpmafia.com/forums/showt...upes-and-Verts
    2005 IR / black / 6MT
    146,000 miles

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