78'-79' Lincoln Versillas or if u only can find a Mark V Lincoln u can cut (narrow) the housing down. By taking the axles out, put the third member back in and marking 20'' on the passangerside and cutting and 18 1/2'' on the driverside and cutting,remeber to keep the ends,u will c a weld on the end of the housing u cut off cut the weld (!!!not the straight through, just the weld!!) should have two end clips(that keeps from by new ones,housing will need to be bored out on the ends alittle) after that I would buy new axles for get about resplining them,DR AXLE 26.25..,PAS AXLE 30.25. Make sure u give the correct spline count(dist. Moser or Currie axles)