Yep, the C&C 14bff housing and shafts are the same as an SRW axle. [NB: There *is* a wiiiiiide dually 14bff, but it's rare; I believe it was only used in a few IFS (i.e. new body style) rigs in 88-91ish. Generally you see the D70 on wide, i.e. not C&C, duallies.]
Yes, you can change hubs to the SRW, moving your WMS out, IIRC 2" on each side.
However, that moves the drums 2" away from the shoes! The brake mounting flange is now in 2" too far ... so you need a 2" spacer for your backing plate. And new brake hardline.
That's assuming you keep the 13x3.5 brakes. I imagine a regular wheel would fit over them -- not all the way, the drum will stick out inside -- but I've not actually tried.
If you do a disc conversion, you'd also need a big honkin' spacer and longer bolts (or at least pipe around the bolts, but that's skanky) ... or a weld-on bracket kit, which used to be made, anyway. I donno if you can get them any more.
Well, you DO have one more option which is to cut off the brake flanges and either reuse them, or have Kert make you a set (he did so for me) and re-weld them on 2" closer. You have to be careful when doing so to get the dang things EXACTLY square though.
I did this ... sort of. I converted my SRW 14bff to dually. In the end I actually kept the SRW hubs, keeping the same WMS as stock, 'cuz the tires and brakes were getting awfully close to the springs and U-bolts.
I did move the brakes back into the axle, as Kert was kind enough to make me new flanges. I eventually converted from dually to disc, so that truck now has a totally custom weird setup on it. I tubbed the wheel wells in a bit, and the tires stick out a bit past the stock (SRW) fender, but not like a wide dually would, so people don't notice it's a dually at first. (Thus the "stealth dually" description.)
Also note that a C&C axle will be off a 1-ton so you'd need to change the spring perches and maybe the shock mounting ... unless that axle is really cheap, I'd reconsider, 'cuz you're in for a lot of
-- A
