High quality hardened steel drive cups specially designed for Arrma safe-d type input shafts (with 2 flats). Will also fit other 5mm shafts.
One M5 grub screw for the large flat, with a second M4 grub screw for the small flat. Greatly improves the rigidity.
These also fit our Arrma diff lockers. Use only the M5 grub screw in this application.
Guaranteed to run true!
This item include 2 x parts
Please de-grease parts and assemble with high strength Loctite, including in the bore. Loctite 271 is recommended.