ghostwhite
+1y
If you are interested in converting to disc brakes you can use a bracket from RuffStuffspecialties that will allow you to mount your 14B Dually hubs on the 14B SRW axle to achieve Cab-N-Chassis width.
There are a few nuances to it but its possible, the only difference between a 14B SRW and 14B CnC is the position of the brake backing plates on the axle housing and the outer hubs. The hubs from a 14B DRW are the same as the CnC 14B.
If you convert to disc brakes then you will not be able to run most stock sized dually wheels because of the deep dish of the dually wheel. If you don't want to convert to disc brakes then you would have to move the brake backing plate.
HERE is a good resource describing the disc brake conversion.
HERE are the RuffStuffSpecialties brackets.