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Kartboy Rear Diff Crossmember Bushings Soft Set - Subaru Models (inc. 2002-2007 WRX/STi)
Kartboy Rear Diff Crossmember Bushings Soft Set - Subaru Models (inc. 2002-2007 WRX/STi)
Kartboy Rear Diff Crossmember Bushings Soft Set - Subaru Models (inc. 2002-2007 WRX/STi)
Kartboy Rear Diff Crossmember Bushings Soft Set - Subaru Models (inc. 2002-2007 WRX/STi)
Kartboy Rear Diff Crossmember Bushings Soft Set - Subaru Models (inc. 2002-2007 WRX/STi)
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User Media for: Kartboy Rear Diff Crossmember Bushings Soft Set - Subaru Models (inc. 2002-2007 WRX/STi)

Kartboy Rear Diff Crossmember Bushings Soft Set

Subaru Models (inc. 2002-2007 WRX/STi)

msrp: $35.00

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Ships within 24 hours
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Features & Product Details

RallySport Direct proudly carries quality high-performance bushings and drivetrain components brought to you by Kartboy. 

On this page, you are looking at the Kartboy Rear Differential Crossmember Bushings. These bushings feature premium urethane construction and have been designed to help secure the rear differential to help eliminate excessive movement and noises. The result will transfer the energy to the wheels which will improve the acceleration under all circumstances. 




  • Made of hard urethane to help reduce deflection 
  • Helps eliminate clunking noises coming from the rear end
  • Improvements can be noticed under acceleration, deceleration, and overall driving
  • Specifications

    Brand: Kartboy
    Bushing Location: Outrigger
    Installation Hardware Included: No, reuses OEM
    Material: Urethane
    Mfgr. Warranty: Limited Lifetime Warranty
    Condition: New Product
    Return Policy:



    5 Reviews
    5 out of 5 Stars
    5 Stars
    4 Stars
    3 Stars
    2 Stars
    1 Stars
    Customer Photos and Videos
    Kartboy Rear Diff Crossmember Bushings Soft Set ( Part Number: KB-003-DIFFSOFT)
    1 of 1 people found the following review helpful
    Great product 5 years ago
    5out of 5stars
    These little things are absolutely incredible. Before this I couldn't feel much of the rear end but with them on its much more apparent that the rear wheels are driving the car and not just the fronts. Responds infinitely better to throttle changes. The install would have taken about 20 minutes with simple hand tools and some grease if I hadn't snapped the nut welded to the frame on the drivers side bushing. That turned it into a 3 day project so be careful if your cars rusty; I had to cut a hole in the rear seat and cut off the bolt head.
    Was this review helpful?
    Another great product from Kartboy! 8 years ago
    5out of 5stars
    Installed these on my 2004 WRX, I personally was not experiencing the clunk But after installing these I noticed the car feeling more responsive during hard acceleration and no added noise in the cabin!
    Was this review helpful?
    1 of 1 people found the following review helpful
    Does not fit legacy gt (05 style) 9 years ago
    5out of 5stars
    Bought these for my legacy gt. Rallysport's site says they fit. They certainly do not fit. They have no place to mount. I however do have a wrx and they work just fine there. Good product.
    Was this review helpful?
    KBFL 9 years ago
    5out of 5stars
    Extremely simple install, you do not even need to jack the car up, just lower the sub-frame (one side at a time), pop the greased bushings on , bolt it up and enjoy a more consistent acceleration. I did not notice any additional noise from the bushings.
    Was this review helpful?
    The EPIC Rattle 10 years ago
    5out of 5stars
    i had a rattle that annoyed me in the gears that were to high i replaced the rear subframe bushing but that didnt help so i added the these bushing and like WHOA rattle gone and rear subframe is more responsive than ever thanks
    Was this review helpful?


    • Q: fitment, 98 outback?  naterkane5 years ago

      is there any reason why these wouldn't fit a 98 legacy outback?
    • Q: Installation  ImprezaJake10 years ago

      How hard are these to install?
      • 1 of 1 people found the following answer helpful

        A:  These are a relatively straight forward install. You will need to lower the rear crossmember a bit, but other than that you just need to set them in place and reattach the crossmember.

        Zach G. @ RallySport Direct 10 years ago  
        Was this answer helpful?

    This Part Fits

    Subaru Forester
    1998 Subaru Forester Base
    1999 Subaru Forester Base
    2000 Subaru Forester Base
    2001 Subaru Forester Base
    2002 Subaru Forester Base
    1998 Subaru Forester L
    1999 Subaru Forester L
    2000 Subaru Forester L
    2001 Subaru Forester L
    2002 Subaru Forester L
    1998 Subaru Forester S
    1999 Subaru Forester S
    2000 Subaru Forester S
    2001 Subaru Forester S
    2002 Subaru Forester S
    Sports 2.5 X
    2008 Subaru Forester Sports 2.5 X
    Sports 2.5 XT
    2008 Subaru Forester Sports 2.5 XT
    2003 Subaru Forester X
    2004 Subaru Forester X
    2005 Subaru Forester X
    2006 Subaru Forester X
    2007 Subaru Forester X
    2008 Subaru Forester X
    2009 Subaru Forester X
    2010 Subaru Forester X
    2011 Subaru Forester X
    X L.L. Bean Edition
    2006 Subaru Forester X L.L. Bean Edition
    2007 Subaru Forester X L.L. Bean Edition
    2008 Subaru Forester X L.L. Bean Edition
    X Limited
    2009 Subaru Forester X Limited
    2010 Subaru Forester X Limited
    2011 Subaru Forester X Limited
    X Premium
    2009 Subaru Forester X Premium
    2010 Subaru Forester X Premium
    2011 Subaru Forester X Premium
    X Touring
    2011 Subaru Forester X Touring
    2003 Subaru Forester XS
    2004 Subaru Forester XS
    2005 Subaru Forester XS
    XS L.L. Bean Edition
    2005 Subaru Forester XS L.L. Bean Edition
    2004 Subaru Forester XT
    2005 Subaru Forester XT
    2009 Subaru Forester XT
    XT Limited
    2006 Subaru Forester XT Limited
    2007 Subaru Forester XT Limited
    2008 Subaru Forester XT Limited
    2009 Subaru Forester XT Limited
    2010 Subaru Forester XT Limited
    XT Premium
    2005 Subaru Forester XT Premium
    2010 Subaru Forester XT Premium
    2011 Subaru Forester XT Premium
    2012 Subaru Forester XT Premium
    2013 Subaru Forester XT Premium
    XT Touring
    2011 Subaru Forester XT Touring
    2012 Subaru Forester XT Touring
    2013 Subaru Forester XT Touring
    Subaru Impreza
    2006 Subaru Impreza 2.5i
    2007 Subaru Impreza 2.5i
    1993 Subaru Impreza Base
    1994 Subaru Impreza Base
    1995 Subaru Impreza Base
    1996 Subaru Impreza Brighton
    1997 Subaru Impreza Brighton
    1993 Subaru Impreza L
    1994 Subaru Impreza L
    1995 Subaru Impreza L
    1996 Subaru Impreza L
    1997 Subaru Impreza L
    1998 Subaru Impreza L
    1999 Subaru Impreza L
    2000 Subaru Impreza L
    2001 Subaru Impreza L
    1993 Subaru Impreza LS
    1994 Subaru Impreza LS
    1995 Subaru Impreza LX
    1996 Subaru Impreza LX
    1995 Subaru Impreza Outback
    1996 Subaru Impreza Outback
    1997 Subaru Impreza Outback
    1998 Subaru Impreza Outback
    1999 Subaru Impreza Outback
    2000 Subaru Impreza Outback
    2001 Subaru Impreza Outback
    2002 Subaru Impreza Outback
    2003 Subaru Impreza Outback
    2004 Subaru Impreza Outback
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    2005 Subaru Impreza Outback Sport
    2006 Subaru Impreza Outback Sport
    2007 Subaru Impreza Outback Sport
    1998 Subaru Impreza RS
    1999 Subaru Impreza RS
    2000 Subaru Impreza RS
    2001 Subaru Impreza RS
    2002 Subaru Impreza RS
    2003 Subaru Impreza RS
    2004 Subaru Impreza RS
    2005 Subaru Impreza RS
    2002 Subaru Impreza TS
    2003 Subaru Impreza TS
    2004 Subaru Impreza TS
    2002 Subaru Impreza WRX
    2003 Subaru Impreza WRX
    2004 Subaru Impreza WRX
    2005 Subaru Impreza WRX
    2006 Subaru Impreza WRX
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    2006 Subaru Impreza WRX Limited
    2007 Subaru Impreza WRX Limited
    2004 Subaru Impreza WRX STI
    2005 Subaru Impreza WRX STI
    2006 Subaru Impreza WRX STI
    2007 Subaru Impreza WRX STI
    WRX STI Limited
    2007 Subaru Impreza WRX STI Limited
    WRX TR
    2006 Subaru Impreza WRX TR
    2007 Subaru Impreza WRX TR