
In an interesting development Ford have re-rated the 4X4 and 4X2 Hi-Rider Rangers to an maximum trailer towing rating (ATM, or Aggregrate Trailer Mass) of 3500kg from 3350kg, an increase of 150kg. Obviously this is in response to the increasing competition in the ute market for towing capacity, with the Colorado's 3500kg rating as one example.
This new rating applies to new Rangers with a build date post November 1st, 2012.
There is no way to re-rate older Rangers because Ford days "the upgraded towing capacity is the result of structural chassis changes including changes to the welding patterns and welding points."