[nomada]

Hi Gaetano, sorry I can't give a definative answer
However, though the 350 and 450 used the same basic transmission, the W3A 040 in the 350 was uprated to cope with the extra torque for use in the 450, it then became the W3B 050
They both have the same ratios but, probably not a good idea as it may not last to long in a 450