From Andrew Wilder on FB:
Losi 22 5.0 Mugen front arm mod
I recently broke my last left front A arm and parts are getting hard to find. I read on Facebook someone did this mod so for $16 I gave it a shot. The arms appear to be very similar dimensions and geometry. Hinge pins in relation to shock locations are virtually identical! You will lose a shock hole adjustment and a VLA settings, are the only downsides.
Drilled out inner hinges with an 9/64 bit. Outer hinge with a 3.5mm. add shims to space the shocks away from turn buckles. Suspension moves nice and free once adjusted.