just wondering if anyone has used this type of helper springs? if so were they worth purchasing?
http://www.partsamerica.com/ProductDetail.aspx?categorycode=3197&mfrcode=MWI&mfrpartnumber=18921
http://www.partsamerica.com/ProductDetail.aspx?categorycode=3197&mfrcode=MWI&mfrpartnumber=18921