Hellwig EZ-990 Add-A-Leaf Stock Height Rear Helper Spring Kit - Silver Powder Coat - Various Applications 991 Tie-Down Tracks Chevrolet: Biscayne 58 - 67

Chevrolet: Biscayne 58 - 67 4

Rotary Dials Select 100 Different Advance Curves

These billet aluminum water necks are designed for 429/460 Ford engines

Assembled with Eatons Aeroquip ProCrimp crimp machine

350 and 400 cid small-block Chevy engines up to 1986

Hellwig EZ-990 Add-A-Leaf Stock Height Rear Helper Spring Kit - Silver Powder Coat - Various Applications 991 Tie-Down Tracks Chevrolet: Biscayne 58 - 67Hellwig 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