Back to article View Gallery 7 of 10 To prevent further axle
breakage, we upgraded to these 4340 chrome-moly axleshafts (top)
from Randy's Ring & Pinion. Besides being built from material
that is very strong, these axles don't neck down like the stock
ones do (bottom). When an axle necks down it loses strength at
the point where it becomes smaller, and this is exactly where we
broke ours. The axleshafts should be the first things you
upgrade on your front Dana 44. Note that options that include
larger axles for the 44 are very limited, though. As far as we
know, nobody offers axles-neither inners nor outers-with larger
spline counts for front 44s. All of those use 30-spline inners
and 19-spline outers. At the rear, though, you can upgrade from
30-spline to larger 33-spline units.