# Girodisc Rear Brake Shoes 279x20 for Ferrari 246 Dino (1969–1974) – 308 GTB and GTS

> Pair of Girodisc rear brake pads, 279 × 20 mm, part no.: D2-021. Replacement cast-iron pads for Girodisc floating discs, compatible with the Ferrari 246 Dino (1969–1974) and the Ferrari 308 GTB and GTS (1976–1985). Rotors not included.

- URL: https://www.gt2i.ch/en/brake-rotor/224246-girodisc-rear-brake-shoes-279x20-for-ferrari-246-dino-19691974-308-gtb-and-gts-3666618855714.html
- Reference: GIRO-D2-021
- Price: CHF 667.47
- Brand: GIRODISC
- Availability: out of stock

## Description

The Girodisc D2-021 rear replacement braking surfaces (279 × 20 mm) allow you to replace the braking surfaces on your GIRODISC rear discs for your Ferrari 246 Dino (1969–1974) and Ferrari 308 GTB and GTS (1976–1985), while retaining the compatible disc bells after inspection. These cast-iron pads maintain the floating mounting’s functionality and facilitate maintenance of a braking system subjected to repeated stress. Sold in pairs, without rotors.
The cast-iron track and floating assembly allow the disc to accommodate thermal expansion differences between its two halves and to center itself between the brake pads. This construction also makes it easier to replace the tracks when they are worn.
New brake pads must be installed with new rotors or new tracks. Their shape and compound must match the mounting, the cast iron, and the intended use; follow the specific requirements for this part number and perform the prescribed break-in procedure.
Specifications for Girodisc D2-021 brake pads for compatible vehicles
Brand: Girodisc
PartNumber: D2-021
Position: rear
Sizes (diameter × thickness): 279 × 20 mm
Vehicles and models: Ferrari 246 Dino (1969–1974); Ferrari 308 GTB and GTS (1976–1985)
Braking surface: high-resistance cast steel
Packaging: pair of brake discs, one left and one right; rotors not included.
Compatible rotors: rotors from the corresponding Girodisc kit; check by part number; not universally compatible with original rotors.
Mounting hardware: mounting kit included; replace the entire disc-to-caliper mounting assembly during reassembly.
Related catalog part: A2-021.
Minimum thickness: 18 mm
Manufacturing of main components: United States
Vehicles compatible with Girodisc part number D2-021
Ferrari 246 Dino (1969–1974)
Ferrari 308 GTB and GTS (1976–1985)
Ferrari 246 Dino (1969–1974): For 5-mounting hubs only.
Ferrari 308 GTB and GTS (1976–1985): Big brake kit including front calipers, front and rear rotors, brake pads, and hoses.
Each application is subject to its specific brake configuration, calipers, and any requirements for brake pads or spacers. Please verify these requirements before ordering.
Girodisc D2-021 Mounting Requirements
Ferrari 246 Dino (1969–1974): For 5-mounting hubs only.
Ferrari 308 GTB and GTS (1976–1985): Big brake kit including front brake calipers, front and rear brake discs, brake pads, and hoses.
Brake Pads and Brake System for Compatible Vehicles
Choose brake pads whose shape is compatible with the calipers, the D2-021 track, and/or the D2-021 rotor, and whose compound is suitable for sport driving or track use. The Endless, pagid Racing, or Ferodo Racing ranges may be considered after verifying the appropriate part number.
For intensive use, we recommend compatible aviation-grade hoses and high-performance brake fluid that meets the vehicle’s specifications, along with proper bleeding and fluid replacement. This recommendation complements a mounting that is compatible with the original hydraulic system.
Maintenance of the Girodisc mounting on compatible vehicles
When worn, replace the pads with the part number compatible with your existing rotors. Reusing a rotor for up to three pad replacements is subject to inspection of its condition, its mounting components, and the mounting instructions; this number does not constitute a guaranteed service life. Use a new mounting component with each pad replacement.
FAQ — Girodisc D2-021 for compatible vehicles
What are the sizes of the D2-021 tracks for my vehicle? The part number shown measures 279 × 20 mm and mounts to the rear axle. The track height, mounting bracket, and cups must also be compatible with the mounting.
Is the product sold in pairs? Yes. It includes a left and a right component for the same axle. The brake shoes are not included.
Do I need to replace my vehicle’s brake pads?Yes. Always install new brake pads with new rotors or new braking surfaces. Their shape and compound must be compatible with the D2-021 track and/or rotor and the calipers. Then break in the rotors and pads according to the prescribed procedures.
How do I identify the left and right sides? Girodisc rotors come with a label attached to each rotor: LEFT for the left side and RIGHT for the right side, as viewed in the direction of travel. On a left-hand-drive vehicle, “LEFT” corresponds to the driver’s side and “RIGHT” to the passenger side. Follow these labels and the instructions. On models with curved internal fins, the rolling direction depends on this internal ventilation; the surface grooves alone are not sufficient to determine the side.
How do I break in this mounting on my vehicle? Follow the Girodisc procedure and the brake pad manufacturer’s instructions to build up an even transfer ply. The PDF documents below detail installation and break-in.
PDF Documents for Mounting and Break-in
We have included two PDF documents below: an instruction manual for installing and breaking in the discs, and an instruction manual for installing new tracks on existing bowls. Consult the document that applies to your specific task before you begin.
Key Features of Girodisc D2-021 Replacement Tracks
279 × 20 mm size for rear braking on compatible vehicles.
Replaceable pads to maintain a two-piece mounting.
Left/right pair identified for mounting.
Compatible aluminum brake rotors are retained to maintain the benefits of the two-piece mounting on unsprung and rotating masses.

## Features

- Product type: Alternative Track
- Diameter in mm: 279
- Position: Rear
- Thickness: 20