Lancia Delta S4 Rear Upright – Motorsport Specification

This Lancia Delta S4 rear upright is manufactured for professional motorsport applications, retaining the original Group B geometry while offering improved durability over ageing OE components. Produced as a high-quality uprated cast unit, it preserves factory suspension geometry to maintain authentic S4 handling characteristics, making it suitable for historic rally, race, hillclimb and performance builds.

Developed for builders and preparers seeking reliability under modern competition loads, this bare upright serves as a robust replacement base for high-performance hub, bearing and brake assemblies. To view more components for this chassis, visit our Lancia Delta S4 parts:
👉 https://www.rallyreplica.co.uk/product-category/vehicle-specific/lancia/lancia-delta-s4/

Key Features

• Uprated cast construction for increased strength over original components

• Retains OE geometry for correct suspension kinematics and authentic handling

• Suitable for historic rally, tarmac/gravel, hillclimb and motorsport builds

• Direct replacement with OEM-style mounting points

• Supplied as a bare upright ready for custom hub/bearing assembly

For additional suspension components, view our Suspension & Wishbones collection:
👉 https://www.rallyreplica.co.uk/product-category/suspension/

Fitment

What’s Included

• 1 × Rear Upright (Bare)
  (Select Left, Right or Pair)

Installation & Technical Notes

• Intended for off-road / competition use

• Professional fitting recommended (press-fit hub and bearing assembly required)

• Geometry check advised after installation

• Lead time may apply depending on production batch

🌍 Outbound Links 

• FIA Historic Technical Regulations: https://www.fia.com/regulations

• Motorsport UK (MSA) Technical & Safety: https://www.motorsportuk.org