70mm Tow Ball. 1 1/2" Shank
6t suits electric couplings.
Replacement tow balls are non ADR approved.
Coupling and Tow Balls obtain ADR approval as a combination unit for couplings over 3.5t. There is no testing process for 70mm tow balls to be tested separately over 3.5t hence lack of ADR approval for replacement balls.
All tow balls comply with Australian Standards to be use don Australian roads.