4x4 geabox upgrade HELP?
can anyone tell me what needs doin to a standard 4x4 mt75 gearbox to run upwards of 600 bhp please, or is it a case of swapping for upgraded all together?
and how much is said mod's/gearbox gonna cost?
thanks in advance for any help
and how much is said mod's/gearbox gonna cost?
thanks in advance for any help
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