I've been using them for the pasted 15+ years. I've had them break at the fulcrum, but there is a life time guarantee on them which i can say that thay stand behind for sure . ive had 3 beak over the years . Always at the fulcrum which i have notice that now they made out of a better material and so far no breakage to date . My lift is .580 with 280 on the seat and its a street driven car ..
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My Half AN Injun.....
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