Add to Cart Powerflex Rear Ride Height Adjuster Shim - 11.4mm - PFR5-427 £24.80 Rear Ride Height Adjuster Shim - 11.4mm - PFR5-427 PFR5-427 is a solution for uneven ride-height issues found on RHD vehicles. It replaces the 5.7mm OE adjuster shim increasing the shim height to 11... £24.80 Add to Cart