I had this issue with my radiator aswell I had to pull the rad as far forward as possible to get clearance then I updated the gearbox mounts to vibratechnics ones. Not had an issue since. The standard mounts will be soft if there the originals and as rsmat says the amount of movement is unbelievable compared to the vibratechnics. You may need to make a bracket up like I did for the lh side to pull it forward.