I would just get a junkyard 60, have Dutchman narrow it and provide shafts, use the torino ends, explorer brake kit from a jeep place, find a set of true Spicer 3.54 gears, diff of your choice (prefer power lok) and put it together, should cost about $1200 plus your labor. Tim

1941 Taylorcraft
1968 Charger
1994 Wrangler
1998 Wrangler
2008 Kia Rio
2017 Jetta

I didn't do 4 years and 9 months of Graduate School to be called Mister!