A steering shaft coupling (1) comprising: an outer tubular shaft member (20), a coaxial inner shaft member (24) slidably inserted within the outer tubular shaft member (20), the outer tubular shaft member (20) having an inner peripheral wall and the inner shaft member having an outer peripheral wall, the inner peripheral wall and the outer peripheral wall having complementary shapes, the complementary shapes transmitting torque between the shaft members, and a biasing member (22) between the inner shaft member and the outer tubular shaft member, the biasing member causing a force opposing the transmitted torque.