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ECS How To Series - Diff Mount Bushing - Audi B6 S4

Hope you enjoyed the content. Here are all the parts and tools necessary to complete these DIY projects in your own garage.

Tips:
Read the instructions completely before starting! Obtain all required tools. Reference factory repair instructions, when in doubt.

If the installation procedures are beyond your tools and skills, contact a qualified installer for professional assistance.


Let's Get Started!

Fitment:
Audi B6 S4 2004-2005

Complete Rear Differential Mount Kit
Includes the ECS Rear Differential Mount and Carrier Mount Inserts!
10X Entries Into Our F80 M3 Sweepstakes

Brand: ECS - Corporate Logo
ES#: 3172515
Mfg#: 018327ECS01KT

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Availability:
Ships in 4 Business Days
On SALE Save 15%
$385.99

This product was last offered at the strikethrough price on
11-07-2026

$328.09 USD
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This product is lifetime replacement eligible Lifetime Replacement
Performance Rear Differential Mount - Audi B6/B7 A4/S4
Increase drivetrain rigidity and response!
10X Entries Into Our F80 M3 Sweepstakes

Brand: ECS - Corporate Logo
ES#: 2717984
Mfg#: 003249ECS01

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Availability:
Ships in 4 Business Days
On SALE
$235.99

This product was last offered at the strikethrough price on
11-07-2026

$224.19 USD
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This product is lifetime replacement eligible Lifetime Replacement
Rear Differential Carrier Mount Bushing Insert Kit
Decrease differential slop for better drivetrain response!
10X Entries Into Our F80 M3 Sweepstakes

Brand: ECS - Corporate Logo
ES#: 3132752
Mfg#: 018327ECS01

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Availability:
In Stock
On SALE Save 30%
$113.99

This product was last offered at the strikethrough price on
11-07-2026

$79.79 USD
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This product is lifetime replacement eligible Lifetime Replacement
Schwaben 15 Pc Metric 1/2" Dr. Deep Impact Socket Set
Schwaben Professional quality 10mm thru 24mm deep set in a sturdy blow molded case.
10X Entries Into Our F80 M3 Sweepstakes
Brand: Schwaben - Corporate Logo
ES#: 2839106
Mfg#: 010393SCH01A

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Availability:
In Stock
On SALE Save 10%
$58.99

This product was last offered at the strikethrough price on
11-07-2026

$53.09 USD
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on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
1/2" Drive Torque Wrench - ft-lbs
Tighten fasteners correctly in foot-pounds of torque (10-150 ft-lbs)
10X Entries Into Our F80 M3 Sweepstakes
Brand: Schwaben - Corporate Logo
ES#: 2221244
Mfg#: TW-12450

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Availability:
In Stock
On SALE Save 25%
$58.99

This product was last offered at the strikethrough price on
11-07-2026

$44.24 USD
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on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
1/2" Drive Breaker Bar 24" Handle
This Schwaben professional grade 1/2" drive breaker bar features a long 24" handle to help bust loose those stubborn bolts and fasteners.
10X Entries Into Our F80 M3 Sweepstakes
Brand: Schwaben - Corporate Logo
ES#: 2776653
Mfg#: 006535SCH01A

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Availability:
In Stock
On SALE Save 25%
Limited Qty Sale
$60.99

This product was last offered at the strikethrough price on
11-07-2026

$45.74 USD
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on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
Indexing Pry Bar Set - 3 Pieces
With fully adjustable locking heads
10X Entries Into Our F80 M3 Sweepstakes
Brand: Schwaben - Corporate Logo
ES#: 1899378
Mfg#: PB-3PCS

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Availability:
In Stock
On SALE Save 10%
$58.99

This product was last offered at the strikethrough price on
11-07-2026

$53.09 USD
Free Shipping Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
12 Pc Metric Combination Wrench Set
Our Schwaben professional grade 8-19mm metric combination wrench set features long handles for extra leverage. Our fine satin finish is easy on the hands and easy to wipe clean.
10X Entries Into Our F80 M3 Sweepstakes
Brand: Schwaben - Corporate Logo
ES#: 2765907
Mfg#: 005989SCH01A

Choose how many gift cards you would like below. You can set the denomination in your cart during checkout.

Availability:
In Stock
On SALE
$58.99

This product was last offered at the strikethrough price on
11-07-2026

$56.04 USD
Free Shipping Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

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