Overview Reviews Product Description KONI Special 8040 series, red painted, internally rebound adjustable twin-tube low pressure gas charged shock absorber. Product Videos Custom Field Product Reviews Write a Review Write a Review × Koni Koni Special D Rear Shock for 87-93 Ford Mustang - 8040 1026 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *