This is the Stock Replacement Suspension Arm Set for the Nitro RS4 3. These are also referred to as "A" arms. FEATURES: Black nylon construction. YOU WILL RECEIVE: One front suspension arm. One rear suspension arm. Two 12mm wheel hex drive washers. REQUIREMENTS: Cutting suspension arms from parts tree. SPECIFICATIONS: Front length: 66mm (2.60") Rear length: 64mm (2.52") COMMENTS: For a complete set, two of these packages will need to be purchased. cmc 02/24/02 ir/kh &