Firestone Ride-Rite Air Helper Spring - 6786
Keep The Vehicle Level, Level Off-Center Loads, Reduce Suspension Fatigue, Air Adjustments Improves The Ride, Reduce Bottoming Out, Increase Vehicle Stability Air Bag Type:Double Convoluted;Air inlet Size:(2) x 1/2 NPT;Mounting Type: (2) 3/8 inch-16 studs top, (1) 3/8 inch-16 blindnut bottom;M;California Residents: WARNING.