Hey everyone, need a little advice about front springs. My 39 Plymouth pickup has a Pete and Jake's front axle/spring assy. It's the standard weight Posies reverse eye spring. My truck has a 330 Desoto Hemi, all iron, iron intake with 2 4's. Estimate weight 650-670. I'm pretty sure my spring is bottoming and flattening on most bumps. It feels like it hit's hard on every spot in the road. Here's my Question...I see that Posies offers a "heavy" version of my spring for "hemi's and big blocks", Any one on here run one of them ? I'm pretty sure my engine and truck weight surpass the "usual" model A or '32 weight with a flatty or small block Chevy. Looking for some input before I spend some more $$. BTW, I called the local spring shop, they said no way to add a leaf to a spring like mine... Any input is appreciated !!!