LROR's Silverback HD 4140 Chromoly Axles for the Toyota Pickup / 4Runner are like the name implies- Strong!  These are made from high grade heat treated 4140 chromoly steel.   Many axles have their drawbacks by poor design and large stress risers. Not here! These are made for heavy duty usage and for off road ability.  Also highly recommended when installing a Spartan, Lockrite, ARB, Grizzly, Zip, Auburn, Eaton, Aussie or Kaiser Locker.


-Heat Treated 4140 Chromoly.  Why not 4340?  It has been used in the past on Rear Axles and has proven to be weak.  For the fatigue resistance and characteristics of 4140, we chose to manufacture them out of what has proven to be the strongest!  Some large name manufacturers have scaled back to 4140 and had less breakages than with 4340. We could have made them out of whatever we wanted, but these have proven to be the strongest!

-30 Spline Shaft for easy installation into your factory spider gears or into an aftermarket locker.

-Uses factory rear wheel bearings and seals as well as factory axle studs for ease of installation and cost effective installation.

-Black Oxide Coated for Corrosion Resistance.

Sold as a Pair


What makes Yukon Gear's Toyota Axles Unique? These carry the same technology that has been used in the strongest axles on the market for years. Not only are these axles made with superior 4340 Heat Treated Chromoly components and metallurgy, they offer rolled splines.  

What makes rolled splines better than cut splines?  Rolled Splines are actually pressing into the material, rather than cutting against the grain of the steel.  When an axle spline is cut, it takes away the grain of the material which essentially makes the spline weaker.

These axles also incorporate the CUT TO LENGTH ability that Yukon is synonymous for.  Measure your factory axle, use a chop saw and cut the axle, and then chamfer the end of the axle.  

-Small Brake Pilot Bore (91mm) fits all pre-IFS rear axles.

-Large Brake Pilot Bore (106mm) fits all 1986 IFS and later trucks.  If you are uncertain of the axle you have, simply measure the brake drum pilot bore.

Axles are sold individually.  That way, if you want to carry a spare you don't have to buy 2 pairs.

Please Note: Will not fit 2003+ 4Runner, T100 or Tundra Rear Axles.