Front & Rear Differentials
Are you asking about an 2008 F350 or a 2006 F350. I don't think Ford actually had a 2007 model year for the 250/350/450. If I'm correct the 350 DRW had a Dana 60 up front and a Dana 110 on the rear of the DRW.
DRW truck has a D60 front and a D 80 rear
SRW truck has a D50 front and a sterling 10.5 out back
SRW truck has a D50 front and a sterling 10.5 out back


