there should be absolutely no difference wether its a dakota or not.... you need to clarify to the shop that you just want your housing shortend! the axels themselves will come from moser..... some shops might be thinking that you want them to shorten both the housing and the axle.
I am taking it to a shop in richmond VA...
there are ones in VA, North carolina, fredricksburg VA, and Maryland. Im sure someone out there can do it...... lata
jon