Q: How to service and repair the Dana S110 differential carrier on Ford F-250 Super Duty?
A: Steam-clean axle, chock wheels, set brake, drain. Take out bottom carrier bolts; disconnect ABS and driveshaft (index). If necessary loosen pinion nut. No hammering/prying flange. Extract shafts, carrier on jack. Check, clean gears/splines/O-ring/threads. Install using gasket maker, new crosswise bolts. Install shafts, driveshaft/ABS, refill to level, unchock, release brake.