RCV Performance Big Bell 47/40 Spline axle set is the ultimate solution designed to fit Rockwell or Custom Dana 80 axles. The Big Bell CVs are our 2.5 ton Rockwell CVs, with Rockwell length stub shafts. The inner 40 spline shafts are made-to-order using the required specs. Please submit your measurements and add to cart.Our Big Bell 47/40 Spline CV axle set is backed by a Lifetime Warranty against breakage. No tire size limit, no horsepower limit. Included in this kit are (2) Big Bell CV assemblies with 47 spline stub shafts, and two (2) custom length 40 spline 4340 inner shafts. Please use measurement guide in Attachment tab to get the proper measurements needed for your order. Note: Custom shafts can take up to 6 weeks. If you have a deadline, please email sales@rcvperformance.com before ordering for lead time estimate. <br />

All RCV products are built to order ship times vary, most items ship in 1-4 weeks.