These axle shafts are the ones used on the Tamiya TRF420 kit. They could be used with other Tamiya devices with the use of double cardan shaft parts. • Axle Shafts x2 • appropriate for dual cardan drive shafts. • Requires 4mm depth bearings if fitting to chassis besides the TRF420. Use with: products 42221, 42219, 42217,42230, 42239, 42319, 42320