Hellwig EZ-990 Add-A-Leaf Stock Height Rear Helper Spring Kit - Silver Powder Coat - Various Applications 991 2020031 1/2 in Bolt Holes

1/2 in Bolt Holes

1955-1959 GMC M300

1988-1995 GMC K1500

875 x 15 x 1

Hellwig EZ-990 Add-A-Leaf Stock Height Rear Helper Spring Kit - Silver Powder Coat - Various Applications 991 2020031 1/2 in Bolt HolesHellwig EZ 990 Medium Duty Load Leveler 991 990 1200 lbs. Capacity For Leaf Spring Applications Only Can Also Use (6400) w o Fifth Wheel Hitch Mounts Under Factory Axle U Bolt Plates Handles Medium Loads Can Be Adjusted Independently For Uneven Loads Increase Spring Rate And Stability Hellwig Products was founded in 1946 after World War II and has remained family owned and operated to this day, manufacturing all of its steel products in Californias