I post this without positive confirmation that my 4th gearbox since transplanting in the quaiffe LSD, is possibly on its way out. I have an appointment to see a gearbox specialist (the same people who did the fit back in 2011) later this week.
This brings me to the thought that it is impossible to modify these boxes without later problems. Whilst I accept pushing them harder will limit life I am feeling a little frustrated.
Should I be looking to change to an M66 - is this any stronger? Should I go brand new & cover that?
The ford focus ST and RS appear to have better boxes?
So Hamish says the only real way to get 400+ HP is to go down the RS Focus route. I don't agree - it must be possible as our Swedish cousins seem to have it nailed.
Going to speak to Russell at RT Mechanics to see what they did to overcome their own challenges on the yellow peril.
Speaking to the gearbox specialist he is also of the opinion that modifying/ ramping up the power on these road boxes is putting them beyond their engineered limits.
Perhaps leaving the open diff as is - is the only way?
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