BMW Drivetrain Parts for BMW Z Series E85/6 (2003-2008)

Differential bushings are responsible for keeping the differential in solid alignment while dampening drivetrain vibration. While OE rubber bushings are fine when they are new from the factory, aged and worn out rubber bushings create a multitude of issues that can range from annoying to dangerous. As a factory bushing ages, it begins to harden and become brittle. When this happens the bushing will actually shrink and allow for movement at the differential mounting point. At this point, the differential is free to shift under load causing a noticeable clunking noise under acceleration and deceleration and massively increasing the stress on the driveshaft and axles. Manual transmissions suffer the worst from this as it can make shifting difficult since the differential will shift when the clutch is engaged and disengaged.

By replacing these bushings with full polyurethane, the movement is eliminated since the mounting point is supported by a much stiffer material that will not harden or shrink over time. This means less stress on the driveshaft and axles and greater longevity of supporting components. 

Powerflex Black Series bushings are the ultimate in track and race bushings. Featuring 95A durometer polyurethane, Black Series bushings are 25% stiffer than street bushings. Engineered to perform, Powerflex performance polyurethane control arm bushings offer a supreme level of control, while still providing enough comfort for the street, with advanced polyurethane that reduces NVH that often accompanies lesser bushings. Expect improved acceleration response, more direct shifting feel and overall improved drivetrain composure with Powerflex performance polyurethane bushings.

Poweflex is a leading manufacturer of aftermarket suspension bushings. Using state of the art design and manufacturing, all replacement bushings are engineered to out-perform and out-last the ones that came in the car. Each line of bushings is meticulously tested and then re-tested to ensure perfect fitment and enduring quality through the life of the vehicle. A full lifetime warranty backs every one of their products and demonstrates the level of confidence and commitment Powerflex has to their customers. 

ECS Performance Clutch and Flywheel Kit – Built for Precision and Power

Step up your BMW’s driving experience with the ECS Performance Clutch and Flywheel Kit, engineered for drivers who demand improved throttle response, stronger engagement, and seamless power delivery. Featuring a modified E34 M5 clutch setup paired with an expertly crafted single-mass flywheel, this kit is designed to enhance both the feel and performance of M5x and S5x engines with 5-speed transmissions.

The single-mass flywheel replaces the bulky, factory dual-mass version, significantly reducing rotational weight for quicker throttle response and sharper acceleration. This kit retains the robustness of the M5 clutch but ups the ante with a reinforced pressure plate and clutch disc, giving you not only increased power handling but also a highly responsive pedal feel for precision control.

Perfect for both clutch replacements and power upgrades, the ECS Performance Clutch and Flywheel Kit transforms your driving experience without sacrificing pedal feel or adding unwanted stiffness. Say goodbye to spongy or overly rigid aftermarket options—this setup strikes the balance that enthusiasts crave, giving you both reliability and satisfaction behind the wheel.

Kit Contents:

Single Mass Flywheel with E34 M5 Clutch Geometry Upgraded Clutch Disc and Pressure Plate Throw-out Bearing and Pilot Bearing Clutch Alignment Tool Flywheel and Pressure Plate Bolts Clutch Highlights:

Torque Capacity: 375 ft-lbs at the crank 240mm Performance Clutch Disc: Organic friction material with copper for heat dissipation and durability OE-Like Backing Plate: Provides smooth engagement and reduced driveline chatter Reinforced Pressure Plate: Holds 1,729 lbs of pressure for a firm, predictable pedal Flywheel Highlights:

Single-Mass Construction: Replaces the heavy factory dual-mass flywheel 4140 Chromoly Steel: Lightweight yet robust (16.5 lbs vs. factory 25.3 lbs) Enhanced Response and Acceleration SFI Certified Developed with Precision: Engineered and quality-tested by ECS Tuning in our Ohio facility, this kit reflects the best in performance engineering. Utilizing advanced tools like FARO laser scanning and 3D CAD modeling, we ensure precision fitment, durability, and consistent results for every driver.

Polyurethane Transmission Mount Set - Street Performance

Your transmission mounts are the backbone of your drivetrain. Stock rubber mounts often degrade quickly, leading to excess movement, mis-shifts, and, in some cases, even chassis damage. ECS Tuning’s Street Performance Polyurethane Transmission Mount Set offers an upgraded solution built for street and track performance alike.

Constructed from high-quality polyurethane and 304 stainless steel, these mounts are crafted to withstand the demands of high-torque and forced-induction setups, minimizing deflection and giving you more direct power delivery. With a 70A durometer rating, these mounts offer the best of both worlds—stiff enough to handle aggressive driving but still comfortable for daily commutes. For track-focused builds, we also offer a stiffer 80A version (sold separately).

Key Features:

Improved Stability: Reduced transmission movement for fewer mis-shifts and over-revs Polyurethane Construction: Stronger than rubber, with excellent oil and water resistance Engaging Driving Experience: A more connected feel without excessive vibration Dual Options: Choose Street (70A) or Race (80A) to match your driving style Durable Design: Mechanical interlock feature for high-stress applications Pair your new clutch and flywheel kit with these premium mounts for an unparalleled driving experience. Plus, our DIY guide makes installation easy—ECS Tuning has you covered from start to finish!

Elevate your lifting experience with the Schwaben Long Low Profile - High Lift Floor Jack. Certified for excellence and designed with a keen understanding of European car enthusiasts' needs, this jack is a testament to precision, durability, and performance. Don't compromise on quality—choose the Schwaben advantage for all your lifting endeavors.

Designed with precision, crafted for performance, and backed by our lifetime replacement program, the Schwaben Long Low Profile - High Lift Floor Jack is a must-have tool for every European car aficionado. This jack is engineered to cater to the unique needs of low ground clearance vehicles, ensuring that your prized possessions are lifted with care and precision.

Key Features:

• One Pump Reach: With its innovative one-pump feature, this floor jack effortlessly reaches contact on most cars, streamlining your lifting process.
• Low Profile Advantage: Boasting a mere 2-3/4" low height and a deep-reach lift arm, this jack is tailored for those sports cars and luxury vehicles that ride close to the ground.
• Hydraulic System Protection: The dual pump pistons are expertly shielded to thwart contaminants from compromising the hydraulic system's integrity.
• Built for Durability: Crafted with heavy gauge construction and fortified with rolled edges, this floor jack guarantees unwavering strength and longevity.
• Precise Control: The U-Joint release mechanism offers meticulous control over load descent at any handle position, ensuring the safety of both you and your vehicle.
• Maneuverability Redefined: Upgraded casters allow seamless maneuverability and effortless positioning of the jack, empowering you to find that perfect lifting spot.
• Safety First: The internal by-pass valve prevents over-pumping, shielding the hydraulic system from stress-induced issues.
• Vehicle Protection: A full cover rubber saddle pad and a protective foam cover on the handle are in place to prevent any unintended damage during the lifting process.
• Impressive Capacity: With a remarkable 4000 lb. capacity, this jack is ready to tackle a range of European vehicles.
• LIFETIME REPLACEMENT: Like almost all Schwaben products, this jack is backed by our lifetime replacement program in case anything goes wrong!

Specifications:

• Min Height: 2-3/4"
• Max Height: 24"
• Handle Length: 49-1/4"
• Jack Body Length: 35"
• Length from Pivot Point to Center of Jack Pad: 22"
• Front Casters: 2-1/2" diameter x 2" width
• Saddle Diameter: 4" with full saddle pad
• Weight Capacity: 4000 lbs.
• ANSI / ASME PALD 2009 Certified

Also included are the Schwaben Aluminum 3-Ton Jack Stands. These ultra-light Schwaben jack stands only weigh 4.7 lbs each. Fit and finish on these stands show how much pride in workmanship goes into our stands. These stands feature all-aluminum construction with heavy-duty flanged bases to safely stabilize loads. Features 6 locking positions for a secure load in multiple heights. The load pin is extra heavy duty at .584 in. diameter and features a posi lock ball to ensure the pin stays in place.  

• Min. Height is 10.6".
• Max Height is 15.4".
• Large 7" diameter base.
• Outer support tube is 2-1/8" in diameter.

For replacement parts, please call us and ask for:

• ES#4430428 - Replacement Screw Set
• ES#4430429 - Replacement Front Wheel
• ES#4430430 - Replacement Caster Wheel

WARNING: This product contains chemicals known to the state of California to cause cancer, birth defects, and/or reproductive harm. See above warning label as well as http://www.p65warnings.ca.gov for further information on Proposition 65 warnings.