tradey Member 72 Member For: 15y 10m 2d Posted 23/02/14 12:45 AM Share Posted 23/02/14 12:45 AM Has anyone actually fitted 3.25 diff gears to a fg turbo ute, mine has a tray back and its normal drive around weight is 2300 kgs , its recently started to give trouble in the zf gearbox and im told its the clutches in the auto not liking the weightSo I thought shorter diff might helpThoughts Link to comment Share on other sites More sharing options...
Mr_4.0 Member 1,096 Member For: 13y 11m 5d Posted 23/02/14 04:52 PM Share Posted 23/02/14 04:52 PM How many km has the car done? How many times has the gearbox been serviced ? What oil was used? Link to comment Share on other sites More sharing options...
tradey Member 72 Member For: 15y 10m 2d Posted 24/02/14 07:42 AM Author Share Posted 24/02/14 07:42 AM 178 000 km and I change the oil every 50,000km I have been using gulf western oil the factory fill is hideously expensive for oil Link to comment Share on other sites More sharing options...
Mr_4.0 Member 1,096 Member For: 13y 11m 5d Posted 24/02/14 10:55 AM Share Posted 24/02/14 10:55 AM Not using the factory ZF oil could be why you have this long term damage. These boxes are sensitive to oil changes due to differences in temps and pressures. Even more so when using aftermarket trans coolers. Factory oil is by far the best and any external trans cooler needs to be run in series with the factory style heat exchanger (however upgrade the heat exchanger to a stronger unit) and fittings and lines need to be the same diameter as factory. To answer your question, the shorter gears may help the box a little. But if the damage is done, death is still enevitable. Link to comment Share on other sites More sharing options...
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