SKU: 93718649236

034 Billet Aluminum Rear Differential Mount Upgrade | B8 | C7

$151.63 $168.48
Save 10%
No.2 Bestseller on prudentsource.com >

Pay in installments of $42.12 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 4 - Aug 9

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

034 Billet Aluminum Rear Differential Mount Upgrade | B8 | C7034Motorsport is pleased to present our new Billet Aluminum Rear Differential Mount Insert Upgrade for the B8 Audi A4 S4 RS4, A5 S5 RS5, Q5 SQ5 & C7 Audi A6 S6 RS6, A7 S7 RS7! The factory Audi rear differential mount has voids in the rubber damping medium, which results in excessive rear differential movement under load. This movement allows for unwanted drivetrain slop (and sometimes clunks) that can be observed when accelerating, decelerating, and

034Motorsport is pleased to present our new Billet Aluminum Rear Differential Mount Insert Upgrade for the B8 Audi A4/S4/RS4, A5/S5/RS5, Q5/SQ5 & C7 Audi A6/S6/RS6, A7/S7/RS7! The factory Audi rear differential mount has voids in the rubber damping medium, which results in excessive rear differential movement under load. This movement allows for unwanted drivetrain slop (and sometimes clunks) that can be observed when accelerating, decelerating, and shifting.

These billet aluminum inserts are designed to fill the voids in both sides of the front-most factory B8 Audi A4/S4/RS4, A5/S5/RS5, Q5/SQ5 & C7 Audi A6/S6/RS6, A7/S7/RS7 rear differential mount, 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. These billet aluminum inserts are precision-machined to fill voids on both sides of the factory rear differential mount, and will not pack and wear out over time.

Features:
  • CNC-Machined Billet Aluminum Construction with Clear Anodized Finish
  • Application-Specific Design for Optimal Fitment and Performance
  • Engineered to Fill Voids In Both Sides of Factory Rear Differential Mount
  • 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 Mount Upgrade (Top Insert | 505-2017)
  • 034Motorsport Billet Aluminum Rear Differential Mount Upgrade (Bottom Insert | 505-2018)
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)

Installs Into:

  • 8K0 599 381H / 8K0599381H
  • 8K0 599 381J / 8K0599381J

Founded in 2005, 034 Motorsport is driven by the passion to bring motorsport-quality performance products and tuning to your Audi and Volkswagen vehicles.

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: 93718649236

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.1 ★★★★★
Based on 26 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
L
Verified Purchase
Lindsay
Whiting, US
★★★★★ 5
Saved my skin during an eczema flare up
This saved my skin! I had an eczema flare on my face, and my usual products weren’t working. A friend recommended the Avene brand and within 3 days of using this rescue barrier serum, my flare was almost completely gone! This saved my face!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 11, 2026
B
Verified Purchase
B Helton
Massapequa, US
★★★★★ 1
PLEASE REVIEW — FORMULA CHANGED!!!
I wish I would’ve posted a review PRIOR to the formula changing but just know that I LOVED this serum. I’ve struggled with hormonal acne (PCOS) and eczema for as long as I can remember. Finally, last summer my dermatologist put me on (3) different RX including Spironolactone and Accutane. I was so tired so I stopped everything except for CeraVe cleanser, retinol (Tretinoin) and CeraVe healing ointment. My made up skin routine was working until I used too much Tretinoin and burned my face. I had read great reviews about this product so I thought, I might as well try it — and IT WORKED! I’ve been using this product for almost a year and I loved it. However, 3 weeks ago when I ordered it, I noticed the bottle had a green tint. I could tell after one use that the feel of the serum was different, more watery, not as thick as it used to be. The smell was also different. Still, I kept using it for nearly 2 weeks and I experienced 2 breakouts! Sure enough, I stopped the product and within a few days, my skin was back to normal. I am very upset because as someone who has extremely sensitive skin, this worked but unfortunately, the new formula isn’t for me.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 14, 2026
D
Verified Purchase
DiG
Houston, US
★★★★★ 5
Gentle and Perfect for Sensitive Skin
Style: 16.7 fl oz
This is a great micellar water! I have very sensitive, acne-prone skin, and it hasn’t caused any redness or irritation at all. It removes makeup very easily and leaves my skin feeling clean and refreshed afterward. I also like to follow up with a mild face wash as part of a double cleanse routine; overall, it feels gentle, effective, and perfect for sensitive skin.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026
G
Verified Purchase
Glitchzig
Massapequa, US
★★★★★ 5
Whoa- I can’t believe this!
Style: 16.7 fl oz
I wanted to try this product for a very specific purpose, I have been looking at facial cleansing wipes to use occasionally at bedtime instead of stripping my face by doing a full wash with cleanser and water. I rarely wear makeup, I spend my energy on finding the best skincare products for my skin and sunscreen. So at bedtime usually, I’m just taking off sunscreen and the day’s grime, or if I didn’t go out, the day’s moisturizing products. I tried several brands of moist facial cleansing wipes, and they left behind a greasy film and my face still feels like it needs a full wash. I would never want to skip properly cleansing my skin, and I usually do a full routine while I shower, but it would be nice to be able to occasionally do something quicker and more convenient without sacrificing on quality. I was hoping this product might cleanse well without needing to be rinsed or breaking me out on occasions where I want something quick and convenient, or maybe am travelling and need a basic routine. Wow, this product is not only perfect for that, it actually makes my skin soft and clean, you’d never know I skipped my regular cleansing and just used this Bioderma product with a cotton pad before my nighttime moisturizers/serum. It completely takes off the day’s water resistant facial sunscreen and any sweat or grime and leaves my skin very clean, soft, not dry, and it feels like there is no residue whatsoever. I also don’t break out or get clogged pores, it is just a clean, soft texture. One cotton pad with product is all takes for my entire face to look and feel just as clean as if I had used my regular products (a cleansing balm followed by a foaming cleanser and lots of rinsing with water). I have used this micellar water quite a bit since receiving it, and have not broken out or had clogged pores from “cutting corners” so to speak. And it cleanses very well. I can’t believe how well it cleanses without needing to be rinsed, without irritating my skin, without clogging pores or causing breakouts, and is suitable to use and then put on my serum and nighttime moisturizer. I’ve even used it the next morning to remove the nighttime moisturizers and then put on my SPF. I worried that I was going to cause my skin not to look as good if I didn’t properly wash and rinse with water but this product is so amazing. I have not yet used it to see how well it removes makeup since I rarely wear any, but just for skincare and cleansing without a full wash with regular water, it is so amazing. Not going to sugarcoat it, this is me wanting a convenient routine when I travel but this is also me being lazy on nights when I’m very tired or mornings when I am in a hurry. I consider this one of my few holy grail skincare products. I have picked up a smaller size for travel. I will keep this on hand always. I’m not even looking at moist wipes anymore. (This product is more gentle and leaves no residue as compared to a dermatologist recommended brand of face wipes). I’m most surprised that it cleans my face so thoroughly and that not rinsing does not cause any irritation or breakouts. Just wow. Totally worth the price. I was going to try other brands but this product has been so good there is no need to.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2024
E
Verified Purchase
Elizabeth M.
San Leandro, US
★★★★★ 5
Go to cleanser that’s simple, effective, and skin-friendly!
Style: 8.4 Fl Oz (Pack of 1)
I love this micellar water. It removes my makeup on the first pass with no harsh rubbing or irritation. Even around the eyes, it feels soothing rather than stinging, which isn’t always the case with makeup removers. It’s also fragrance free and lightweight, so it doesn’t leave behind any greasy or sticky residue. Another major plus is the no-rinse formula. You can use it quickly with a cotton pad and be done, which makes it perfect for busy nights or when you just don’t feel like doing a full routine! It leaves your skin feeling clean, calm, and moisturized. Seriously gentle yet effective.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 3, 2026

recommand products

Paris Varsity Print Oversize T-Shirt
75.00
animated characters Nickelodeon TV Little Bill 35m-11479
11.49
Diamond Eye KIT 5in TB SGL MFLR RPLCMENT PIPE AL: 94-02 DODGE CUMMINS 5.9L W/ RP #510220
483.93
DBA 12+ Nissan GT-R 5000 Series Brembo Only Direct Replacement Rotor
268.49
Anita Ekberg in fishnets does her dance moves 8b20-3964
11.49