[ShadeTek]

Expect to pay at least £3-£4K to have the gearbox properly refurbished and have all the valves and plates etc replaced. A good shop will vacuum test the the valve body and have the correct kit to do so. The mechatronics block may also need drilled out if the valve bores are scored. Even if the oil has not been changed everything still wears out due to a poor design where one fluid that lubes the actual gears, is also used to circulate through the valve body to push the actuators which is such a bad design.

I have done 85,000 on mine and it is still going OK. They have a bad name because of the Ford dry clutch version of the gearboxes which are typically used with higher powered engine which wears the clutch out quicker. The wet clutch, lower power powered engines helps them last longer.