I am looking for the official maximum towball weight for a GQ Patrol. The genuine Nissan towbar on the Old Trol has a compliance plate stamped with the maximum tow weight at 2270 kilos, but has no towball weight value. i have spent a bit of time searching, to no avail.

I can buy a Hayman Reese bar that has a maximum tow ballweight of 350 kilos but that is useless if the Patrol is limited to a paltry 120 kilos (as stated in earlier posts).

Every van I have looked at have a 130-180 k rating. Are there suspension kits that an be fitted to raise the allowable towball weight?