Curb Hoppers0My CartPAC Racing Springs(16-Pack) Pac Racing PAC-1237X RPM Valve Spring Dual 550lb/in Spring Rate 1.045" Bind 1.274" ODListing ID: 978470Manufacturer Part Number: PAC-1237XReference Part Number(s): PACPAC-1237XOut Of StockBrand NewCopyright (C) 2019-2024 Initial Holdings LLC dba Curb Hoppers. All Rights Reserved.