Request Rejected crossover drives, CB-5 wrap spring clutch, CB-6 wrap spring clutch, PSI wrap spring clutch, Torsion spring clutch, wrap spring clutches, wrap spring clutches/brakes, north american clutch/brakes, cros Crossover Drives manufactures and sells a full line of CB, Super CB, PSI and SAC style wrap spring clutches and clutch/brakes. We offer affordable drop-in replacements for most other manufacturers (like Deltran and Warner?), including any special features.