Hellwig - 978 - Leaf Helper Spring - 978 EZ-990 Helper Spring Kit - P/N: 978 730133 Quad Simultaneous: Both sides flash

Quad Simultaneous: Both sides flash four times simultaneously in quick succession

Box Dimensions: 3"H x 28"W x 28"L WT: 6

while onboard equipment usually requires 12 V

Spring loaded holder expands and contracts for perfect fit of your device 2

Hellwig - 978 - Leaf Helper Spring - 978 EZ-990 Helper Spring Kit - P/N: 978 730133 Quad Simultaneous: Both sides flashLeaf Helper Spring EZ 990 Helper Spring Kit EZ 990 Helper Spring Kit; Up To 2000 lbs. Level Load Capacity; SPECIFICATIONS: Adjustable Length: Yes Color: Silver Hammertone Material: Steel Mounting Hardware Included: Yes WARNING CA Proposition 65: Yes WARNING CA Proposition 65 Message: WARNING: Cancer and Reproductive Harm www. P65Warnings. ca. gov FEATURES: Adjusted Independently For Uneven Side To Side Loads Mount Under Factory Axle U Bolt Plates