SKU: 9474495138

034Motorsport Rear Differential Mount Insert Kit, Audi B8 A4/S4/RS4, A5/S5/RS5, Q5/SQ5 & C7 Audi A6/S6/RS6, A7/S7/RS7 - 034-505-2016

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Description

034Motorsport Rear Differential Mount Insert Kit, Audi B8 A4/S4/RS4, A5/S5/RS5, Q5/SQ5 & C7 Audi A6/S6/RS6, A7/S7/RS7 - 034-505-2016034 Motorsport Rear Differential Carrier Mount Insert Kit, Audi B8 A4 S4 RS4, A5 S5 RS5, Q5 SQ5 & C7 Audi A6 S6 RS6, A7 S7 RS7 034 505 2016. 034 Motorsport is pleased to present our new Billet Aluminium Rear Differential Carrier Mount Insert Upgrade for the B8 Audi A4 S4 RS4, A5 S5 RS5, Q5 SQ5 & C7 Audi A6 S6 RS6, A7 S7 RS7, as well as the D4 Audi A8 S8! The factory Audi rear differential carrier bushings have voids in the rubber damping medium, which

034 Motorsport - Rear Differential Carrier Mount Insert Kit, Audi B8 A4/S4/RS4, A5/S5/RS5, Q5/SQ5 & C7 Audi A6/S6/RS6, A7/S7/RS7 034-505-2016.

034 Motorsport is pleased to present our new Billet Aluminium Rear Differential Carrier Mount Insert Upgrade for the B8 Audi A4/S4/RS4, A5/S5/RS5, Q5/SQ5 & C7 Audi A6/S6/RS6, A7/S7/RS7, as well as the D4 Audi A8/S8!



The factory Audi rear differential carrier bushings have voids in the rubber damping medium, which results in excessive rear differential movement (twisting) under load. This movement allows for unwanted drivetrain slop (and sometimes clunks) that can be observed when accelerating, decelerating, and shifting.

These billet aluminium inserts are designed to fill the voids in the factory B8 Audi A4/S4/RS4, A5/S5/RS5, Q5/SQ5 & C7 Audi A6/S6/RS6, A7/S7/RS7 rear differential carrier mounts, and limit rear differential movement without sacrificing ride quality or introducing any additional noise, vibration, or harshness into the cabin. By filling the voids in the factory mounts, these inserts eliminate the associated slop and ensures that you're experiencing smoother shifting and throttle transitions, and an improved driving experience.

Installation is very simple, can be performed in minutes, and is completely reversible.

Features:
  • CNC-Machined Billet Aluminum Construction with Clear Anodized Finish
  • Application-Specific Design for Optimal Fitment and Performance
  • Engineered to Fill Voids In Factory Rear Differential Mounts
  • Drastically Reduces Rear Differential Movement During Shifting, Acceleration, and Deceleration
  • Improves Shifting Feel, Resulting in Crisper Shifts
  • Will Not Cause Additional NVH Transfer Inside Cabin
  • Easy, Straightforward Installation Takes Minutes!
What's Included:
  • 034Motorsport Billet Aluminum Rear Differential Carrier Mount Insert Pair
Installation Instructions:
Fitment:
  • 2009 - Present Audi A4 (B8)
    • Quattro Models Only
  • 2010 - Present Audi S4 (B8)
  • 2013 - Present Audi RS4 (B8)
  • 2008 - Present Audi A5 (B8)
    • Quattro Models Only
  • 2008 - Present Audi S5 (B8) 
  • 2013 - Present Audi RS5 (B8)
  • 2008 - Present Audi Q5/SQ5 (B8)
  • 2012 - Present Audi A6 (C7)
    • Quattro Models Only
  • 2012 - Present Audi S6 (C7)
  • 2012 - Present Audi RS6 (C7)
  • 2012 - Present Audi A7 (C7)
    • Quattro Models Only
  • 2012 - Present Audi S7 (C7)
  • 2012 - Present Audi RS7 (C7)
  • 2010 - Present Audi A8 (D4)
    • Quattro Models Only
  • 2012 - Present Audi S8 (D4)

Installs Into:

  • 8K0 599 257N / 8K0599257N
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 9474495138

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tjw
Whiting, US
★★★★★ 3
Way too narrow
Size: 9.5 Wide, Color: Burgundy Polished Full Grain
I ordered a wide in this shoe, but it was still way too narrow. I had to return them. Otherwise, it looked like a nice quality shoe.
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Reviewed in the United States on February 12, 2026
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BetterEveryDay
Waukegan, US
★★★★★ 5
I usually wear 11.5's, but I buy 1/2 size smaller to accommodate for stretch. Leather relaxes.
Size: 11, Color: Burgundy Polished Full Grain
5 STARS: These shoes are awesome. I keep coming back for more. I have major foot problems, have tried all kinds of shoes, orthotics, and inserts... but believe it or not, these shoes work better than any of that stuff. I wear them daily. I buy lots of them, for home, for church, and I'm getting my first pair of J&M boots today, for winters in Indiana... Brrrr
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Reviewed in the United States on December 18, 2025
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Doc
Birmingham, US
★★★★★ 5
Great price great shoe
Size: 12, Color: Burgundy Polished Full Grain
Excellent shoe. Tried the Sebago penny loafer and the sizing was ridiculous. These J and M are sized perfectly. I’ve had them before and they wear like iron. Very comfortable right out of the box.
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Reviewed in the United States on May 23, 2026
R
Verified Purchase
roger mendes
Boise, US
★★★★★ 5
One of the best shoes
Size: 9.5, Color: Black Polished Full Grain
Outstanding. Fashionable, most comfortable and good construction. No sines of use after quite some time. Highly recommended.
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Reviewed in the United States on March 21, 2026
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xyz
Chelsea, US
★★★★★ 4
Quality shoe but with a slight squeak.
Size: 10 Wide, Color: Burgundy Polished Full Grain
Nice shoes with the classic Penny Loafer design. Fit was better than another brand I tried. Only reason not 5 starts is disappointment due to a slight squeak at times when walking.
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Reviewed in the United States on August 11, 2025

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