BMW E30 Rear Trailing Arm Spring Perch Reinforcement

Description

Introducing our E30 rear spring perch reinforcement plates. After 30+ years of use, E30 rear trailing arm spring perches are known to fatigue, crack, and even fail, especially on cars running stiffer springs or seeing aggressive driving. This stainless steel spring perch reinforcement is a simple, effective solution designed to strengthen a known weak point without adding unnecessary complexity. 

Constructed from durable stainless steel, this reinforcement distributes load more evenly across the spring perch, reducing stress and preventing further wear or deformation. Best of all, it installs with no welding required—making it an easy upgrade whether you’re refreshing your suspension or adding insurance to a high-performance setup.

Features

• Purpose: Reinforces weak factory rear trailing arm spring perches. Helps prevent cracking, bending, and long-term fatigue
• Material: Made from corrosion-resistant stainless steel
• Install: No welding required – straightforward installation
• Fitment: Ideal for any E30 - stock, lowered, or performance-oriented builds

Included

• Two Reinforcement Plates for the Rear Spring Perch (Enough to do one car)
• Price is for a pair (2 units). Enough to do 1 car

Example of warped/damaged rear spring perch -