Before lifting
Installation checkpoints
The manufacturer requires a clean, dry arm bore and the supplied retaining compound. The carrier, retaining cap and sleeve form an assembly: the sleeve must not be omitted. Use the kit instructions for its fasteners and BMW instructions for arm reattachment; those are different joints.
Sources 1
After assembly
An alignment is required. Have the installation inspected before driving. This planning guide does not substitute for the kit’s illustrated press procedure or supply guessed suspension torque values.
Sources 1
Sources / references 1
- Dinan INS280-0011 — Rear trailing-arm monoball kit ↗Reviewed Sep 27, 2026
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