I just priced everything to do a truck Dana 60 myself. This is what I found from Dr. Diff (cass)
Dana 60 spool $125
35 spline axles with bearings and 3" studs $300 pair most lengths
gears 3.54, 3.73, 4.10 or 4.56 $195 pair
install kit $125
add ring gear bolts $15 set
axle flanges for the end $70 pair, plain
$145 pair deluxe kit with inner seals, studs and nuts
and spring perches $15 pair
1350 forged steel U-bolt yoke $70
Comes to $1060