We are looking at upgrading our 407c forklifts for 408ds or 357ds. We don’t want anything other than cat before you start! Has anyone used a new cat in vain and can tell us if they have sorted the overheating transmissions in the previous c series machines buy increasing air flow and reposition hydraulic oil rad. The new machines have touque lock up which should help considerably to reduce slip in the touque converter thus keeping oil cooler for a start.