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Thread: Hard Motorsports Rotor Backing Plates Fitment Issues (E36)

  1. #1
    Join Date
    Feb 2005
    Location
    Astoria, NY
    Posts
    820
    My Cars
    '99 M3

    Hard Motorsports Rotor Backing Plates Fitment Issues (E36)

    Has anyone had fitment issues with the rotor backing plates that come with the Hard Motorsports Brack Duct Cooling kit? I am running the euro floating rotors and was having clearance issues at both the top and bottom of the ring that comes off the plate. In the top two pictures, I started bending the rim and it ended up popping off the plate, so I cut that section off entirely. In the bottom photo, the rim was sitting right on the rotor lip so I had to bend it upwards so the rotor could spin freely. The picture only shows the beginning part of what I had to do; had to bend the entire lip until it ends. Pictures are just driver side; passenger side required the same modification.



    Last edited by BlackHawkRacing; 05-26-2018 at 10:17 AM.

  2. #2
    Join Date
    Jan 2002
    Location
    North Augusta SC
    Posts
    1,057
    I use them with a Stoptech BBK. I had to do a little grinding on the lower control arm, and some minor bending of the flange to get them to fit without rubbing.
    '95 M3 S54 Track Toy
    '12 X3 35i M-Sport
    '16 VW Golf R

  3. #3
    Join Date
    Nov 2012
    Location
    West Point, Virginia
    Posts
    728
    My Cars
    2002, 320is, 328is, M3
    I looked at their stuff as well as a video on installing their stuff on an e46 M3. Does not fit without work. Asked them some questions on line and the answer I got back was, "We have not tested fitment with this exact product. We do run a BBK on our E36 with the 332mm backing plates. The plates are compatible with the rotors."


    I opted for a set of Mustang plates that are on the way
    ME:"I want to make my car faster and lighter"
    THEM:" Get out and let someone else drive"

  4. #4
    Join Date
    Mar 2006
    Location
    Menlo Park, CA
    Posts
    1,765
    My Cars
    95 M3 & Legacy Manwagon
    I just installed the plates last night-- I run the 332mm Stoptech kit. Hard's advice for me was to use the black ("Stock -to- 332mm") sized backing plate.

    After I cut off the old dust shield they bolted right up and cleared the rotor hat just fine, if anything they are a bit undersized for this rotor size. I have not checked control arm clearance to be fair-- didn't think about that at 11pm. I'll take a look today when I'm back at the car.
    "Fear disturbs your concentration" -Sabine Schmit

    1995 BMW M3/2/5-- S54 + Mk60 DSC, California Smog Legal (Build Thread)
    1998 BMW M3/4/5 Alpine/Modena, Z3 Rack, otherwise stock-- DD without burbles
    2017 Chevy SS, Orange Blast Metallic, 6MT -- DD with burbles

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