So I’m thinking about making this truck a 4x4. I have considered canabalizing my 1990 w250 to do it with but really don’t like the idea. BUT if I did would the front axle work or would I have to find a w350 front axle out of a dually.

 

Finding the right dually axle would be easiest.
Even getting a 4x4 W-350 frame section with all the 4x4 parts on it and do the 2wd to 4x4 swap the same way that my '89 Racmcharger was done.

I know a guy that knows a guy, that might even have those parts....Haha

 

I'm really happy with my W250 club SRW. I'd merge the two trucks in a heartbeat. As soon as you step up to 33" tires on a SRW (presuming 3750-4000# capacity), you can meet all the 1-ton weight ratings anyway.