BMW E36 / E46 3 Series & E85 / E86 / E89 Z4 Adjustable Rear Trailing Arm Toe-In Brackets 1992 - 2016 (Excludes E36 Compact / Ti / Z3 / M Variants / Replaces 33303411877 / 33303411878 / 33301096602 / 33301096601)

Restore proper rear suspension alignment on your lowered BMW E36, E46, or Z4 with this premium adjustable rear trailing arm toe-in bracket set, precision crafted from laser-cut mild steel with TIG-welded construction for permanent durability and dramatically expanded toe adjustment range. When the rear suspension geometry is modified by lowering the chassis on E36, E46, or Z4 platforms, the factory trailing arm bracket frequently runs out of toe adjustment range — leaving alignment shops unable to dial in proper rear toe specifications and resulting in uneven tire wear, unstable handling, and compromised lap times for track-driven vehicles. This redesigned bracket set provides significantly greater toe adjustment range than factory components, enabling proper alignment on lowered street builds, track day cars, drift cars, and dedicated competition vehicles. Black powder-coated finish provides permanent corrosion resistance for sustained underbody exposure.

Features:

• Significantly expanded toe adjustment range – allows proper rear alignment on lowered vehicles where factory brackets run out of adjustment range
• Premium 3mm laser-cut mild steel construction – delivers exceptional strength and dimensional accuracy for racing-grade performance
• TIG-welded fabrication – professional welding process ensures structural integrity under sustained suspension loads
• Black powder-coated surface finish – delivers superior corrosion resistance and a clean professional aesthetic for long-term underbody durability
• Direct OE replacement design – installs into factory trailing arm mounting position without modification
• Wide cross-platform compatibility – fits the entire BMW E36 / E46 / Z4 non-M chassis range
• Ideal for motorsport applications – designed specifically for drift, track day, autocross, and competition use

Specifications:

• Condition: 100% Brand New
• Type: Rear Trailing Arm Adjustable Toe-In Bracket Set
• Material: 3mm Laser-Cut Mild Steel (High Strength)
• Construction: TIG Welded
• Surface Finish: Powder Coated (Black)
• Item Weight: 1.5 kg
• Quantity: Bracket Set
• Position: Rear Trailing Arm Mount
• Purpose: Performance Upgrade / Rear Toe Adjustment Range Extension

OE / Replacement Part Numbers:

• 33303411877 / 33 30 3 411 877
• 33303411878 / 33 30 3 411 878
• 33301096602 / 33 30 1 096 602
• 33301096601 / 33 30 1 096 601

Fitment:

Critical fitment exclusions – verify your model and trim before ordering:

• BMW 3 Series E36 (1992 – 1999) – Excludes E36 Compact and Ti variants
• BMW 3 Series E46 (1999 – 2006)
• BMW Z4 E85 / E86 (2003 – 2008)
• BMW Z4 E89 (2009 – 2016) – Excludes Z4 M variants
• Will NOT fit BMW Z3
• Will NOT fit E36 M3 (verify with M3 owners)
• Confirm vehicle model, chassis code, and trim before ordering

Bushing Compatibility:

• Compatible with factory rubber bushings
• Compatible with polyurethane rear trailing arm bushings
• NOT compatible with most aftermarket spherical or solid bushings – verify bushing compatibility before installation

Contents:

• Adjustable Rear Trailing Arm Toe-In Bracket Set

Benefits:

• Enables proper rear toe alignment on lowered E36 / E46 / Z4 chassis – eliminates the alignment frustrations that develop when factory brackets run out of adjustment range
• Resolves uneven tire wear caused by improper rear toe – critical for tire longevity and consistent handling on lowered vehicles
• Restores predictable handling characteristics – proper rear toe is essential for chassis balance, stability under braking, and consistent cornering response
• Significantly improves track day and competition performance – allows alignment specialists to dial in toe specifications optimal for specific racing applications
• Critical upgrade for drift and motorsport applications – the expanded adjustment range enables aggressive alignment configurations not possible with factory brackets
• 3mm laser-cut mild steel construction with TIG welding delivers permanent strength – will not bend, crack, or fail under sustained motorsport loads
• Black powder-coated finish maintains the premium appearance and corrosion resistance through exposure to road salt, moisture, and weather
• Compatible with both factory rubber bushings and polyurethane upgrade bushings – flexibility for street, track, and competition applications
• Wide cross-platform compatibility makes this a versatile upgrade for serious E36 / E46 / Z4 enthusiasts who manage multiple chassis

Critical Compatibility Notes:

• E36 Compact / Ti exclusion: Does NOT fit E36 Compact / Ti hatchback variants which use a different rear suspension design
• Z3 exclusion: Does NOT fit BMW Z3 chassis – completely different rear suspension architecture
• Z4 M exclusion: Does NOT fit Z4 M variants which use different rear suspension geometry
• Aftermarket bushing compatibility: May not be compatible with aftermarket spherical bushings, monoball bushings, or solid bushing kits – verify bushing dimensions before installation

Installation Notes:

• Variant verification required: Confirm your specific BMW variant before ordering – E36 Compact / Ti, Z3, and Z4 M variants are NOT compatible
• Properly support the rear of the vehicle on jack stands rated for the vehicle weight before beginning installation – never work under a vehicle supported only by a jack
• Mark the original alignment positions of all rear suspension components before disassembly – this provides a reference point for initial alignment
• Carefully remove the factory trailing arm brackets – inspect surrounding hardware and bushings for wear during removal
• Inspect rear trailing arm bushings during installation – worn bushings should be replaced before installing the new brackets for optimal performance
• Position the new adjustable brackets in the factory mounting locations – use the factory hardware where compatible
• Tighten all rear suspension hardware to factory torque specifications using a calibrated torque wrench
• Wheel alignment mandatory after installation: Have a qualified alignment specialist set rear toe to your specific application requirements (street, track, drift) – this product enables alignment but does not perform it
• For motorsport applications, consult with experienced track day or drift alignment specialists for optimal toe specifications for your specific use case
• Test rear-end behavior at low speeds before aggressive driving – verify stable handling and predictable response
• Re-check alignment after initial driving cycles to verify settings remain stable
• Professional installation strongly recommended – rear suspension work requires geometry knowledge and proper tools
• If unsure about compatibility with your specific BMW variant or bushing configuration, contact our team with your year, model, chassis code, trim, and current bushing setup before ordering

Warranty:

• 12-month standard warranty from date of purchase
• Contact our support team for assistance with any issues

Warranty Assurance:

At K2 Industries, your satisfaction is our priority, and we stand behind the quality of our products. Here's a brief overview of our warranty:

Defect Coverage:
If you find a defect after receiving your order, get in touch with us. We're committed to resolving the issue, whether it involves a replacement, repair, or refund.

Installation Note:
Please inspect your purchase before installation. Unfortunately, damages post-installation are not covered, so ensure everything looks good beforehand.

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Need to make a claim? Reach out to us at support@k2-industries.com. We're here to assist you. Just keep your original packaging and documentation handy.

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Your trust in K2 Industries is appreciated. We're dedicated to ensuring your satisfaction with our quality automotive parts.

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