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034 Motorsports Billet Aluminum Upper Dogbone Mount Insert for VW Mk5/6 & 8P/8J Audi

  • 034 Motorsports Billet Aluminum Upper Dogbone Mount Insert for VW Mk5/6 Golf/GTI/R/Jetta/GLI & 8P Audi A3/S3 & 8J Audi TT/TTS/TTRS (034-509-1040)
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SKU:
034-509-1040
Weight:
5.00 LBS
Shipping:
Calculated at checkout
Quantity:

VW/AUDI PERFORMANCE PARTS: 034 Motorsports Billet Aluminum Upper Dogbone Mount Insert for VW Mk5/6 Golf/GTI/R/Jetta/GLI & 8P Audi A3/S3 & 8J Audi TT/TTS/TTRS (034-509-1040)

Product Features:

  • CNC machined billet aluminum upper insert
  • Clear anodized for corrosion resistance
  • Aluminum lower insert spacer
  • Eliminates bending moment on dogbone arm
The 034Motorsport Upper Dogbone Mount Insert (patent pending) strongly recommended for any MkV/MkVI Volkswagen Golf/GTI/R/Jetta/GLI and 8P Audi A3 & 8J Audi TT/TTS/TTRS using any dogbone mount and dogbone mount insert. Aggressive driving that causes violent drivetrain movement, such as burn-outs that induce wheel-hop, will cause the upper and lower dogbone mounts to exert a bending moment on the dogbone mount arm, causing it to bend, and in some cases fail. When this failure occurs, the bottom of the engine is unconstrained and the engine will cause damage to other components in the engine bay. The 034Motorsport Upper Dogbone Mount Insert eliminates these bending forces, allowing the dogbone mount to perform as designed during these violent events.

Any dogbone mount combined with a lower dogbone mount insert dramatically improves the feel and responsiveness of the drivetrain during spirited driving. However, this combination of modifications has revealed a scenario that applies forces to the dogbone mount arm that it was not designed for.

The lower dogbone mount insert limits compliance of the lower dogbone mount puck by filling large voids in the puck. During normal and spirited driving, this reduction in compliance results in more direct transitional response of the drivetrain to accelerative and decelerative forces. The driver feels more direct throttle response through the drivetrain without introducing a significant amount of NVH.

However, violent drivetrain shocks, such as burn-out induced wheel-hop, introduce additional forces that can cause damage to the dogbone mount arm. In these violent events, the lower puck motion is limited by the dogbone insert, but the upper puck in unconstrained and is free to move forward.

This means that the entire puck assembly rotates forward at an angle towards the front of the car. Because the dogbone mount arm is clamped into the puck assembly, the rotation of the puck assembly generates a bending moment applied to the dogbone mount arm that it was not designed for.

034's engineering team developed this Billet Upper Dogbone Mount Insert to solve the issue. This insert slips into the front void of the upper dogbone mount puck, limiting the forward motion of the upper puck to match the limited forward-motion of the lower puck with the lower insert installed. The result is an upper and lower insert package that eliminates the rotation inside the puck assembly during extreme drivetrain shocks, and keeps the forces acting on the dogbone arm in the direction the arm was designed for. Subsequent testing showed no signs of bending or stress in the dogbone mount arm with both the upper and lower dogbone mount inserts installed.

Additional Details:

Kit Includes:

  • 034Motorsport Upper Dogbone Mount Insert
  • 034Motorsport Lower Dogbone Mount Insert Spacer

Fitment:

  • Audi A3 2009-2013 8P
  • Audi TT 2009-2014 8J
  • Audi TTS 2009-2014 8J
  • Audi TTRS 2009-2014 8J
  • VW CC 2009-2013 B7
  • VW EOS 2009 MkV
  • VW GLI 2009 MkV
  • VW GLI 2011-2017 MkVI
  • VW Golf 2009 MkV
  • VW Golf 2010-2014 MkVI
  • VW Golf R 2010-2014 MkVI
  • VW GTI 2009 MkV
  • VW GTI 2010-2014 MkVI
  • VW Jetta 2009 MkV
  • VW Jetta 2010-2017 MkVI
  • VW Passat 2009-2011 B6
  • VW Rabbit 2009 MkV
  • VW Tiguan 2009-2016 I&II

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