We just updated our HPI Baja 5b 5t 5sc enclosed clutch carrier with a larger outer bearing. We have replaced the small stock sized bearing with the larger 28mm od crank bearing. The carrier will still use the standard size clutch bell and pinion gear.
http://www.adaracing.com/hobby-rc/hpi-racing-baja-5b-clutch-carrier-enclosed/15-2301
