Hey Starfield7, I have an 01 hilux too but with the styleside tray, and share the same problem. From what I've heard it's the main problem with the hilux - great for when you need to carry heavy loads but otherwise annoying and dangerous. I changed my tyres from Pirelli to a toyo H08 (I still have stock steel wheels) and lowered the pressure to 32psi and this seems to have helped but I still have problems in the wet - particularly on hills. I have thought about welding some threaded rod on / near the rear axil so I could bolt and unbolt steel plates to it. Not sure how this would go and if its even legal.. If I get around to it though I'll let you know :)