Dinan Suspension Link Kit – BMW S63 M5 / M8 (F90 / F9x)

OVERVIEW

Dinan's high-performance Rear Suspension Link Kit adds precision and predictability at the limit. The stock rear toe link setup uses rubber bushings and a curved forged alloy rod that flexes easily; under hard acceleration and braking that flex allows excessive rear toe change and the car feels unstable. Dinan stops the flex by replacing the rubber bushings with Teflon-lined machined steel rod ends and swapping the OEM curved bar for a stouter billet aluminum arm.

The stock front trailing links carry rubber bushings of their own, and deflection there lets the rear axle behave sloppily under heavy load; Dinan replaces them with billet aluminum arms on precision ball joints of the same type used in the Dinan front monoball kit — for a more stable, planted F90 M5 without giving up ride quality or comfort.

SPECS

• Replaces the stock rear toe link and rubber bushings with a precision-machined black-anodized aluminum arm on racing-quality rod ends
• Replaces the stock forward lower trailing link and rubber bushings with a precision-machined black-anodized aluminum arm on precision ball joints
• Rod ends are Teflon-lined and bearings are nylon-lined for quiet operation
• Rubber boots protect the rod ends from environmental damage
• Trailing arm assemblies are preset to the correct length by Dinan and are never to be adjusted
• Left and right toe link assemblies are different and side-specific
• Improves stability during hard cornering and response by eliminating rubber bushing deflection
• Shipping weight: 10 lbs; carton approx. 22" × 12" × 4"
• Dinan published labor time: 3 hours
• Emissions: "This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations."
• Dinan warranty: on a vehicle still covered by the BMW new-car warranty, the remainder of that warranty (typically 4 years/50,000 miles); otherwise 2 years, unlimited mileage. Wear items, maintenance services and fluids are excluded.

PARTS INCLUDED

• 2 × D283-0032 trailing arm assembly
• 1 × D283-0033 toe link assembly, left
• 1 × D283-0034 toe link assembly, right

TECH RESOURCES

Additional Parts Required

• Four-wheel alignment. Dinan requires the alignment to be reset per BMW procedure after installation. Budget for this before ordering.
• Torque wrench and secure jack stands — Dinan warns against working on a vehicle supported by a jack alone. Installer-supplied.

Installation

• Dinan D280-0020 Rear Suspension Link Kit installation instructions (PDF) — INS280-0020 Rev. 08/27/21: bill of materials, left/right toe link identification, fitting sequence and alignment requirement.

PART NUMBER

• D280-0020 — Dinan Rear Suspension Link Kit, F90 M5 and F9x M8

VEHICLE APPLICATIONS