Quote:
Originally Posted by ToucanLife
Modern syncros can handle a downshift to first without issue - the M box will have no issues popping into first at 5-10mph with a proper rev match, not 1995 anymore. Just don’t force it in or do it much above 3500rpm into first or the delta will be too high.
Source - have rebuilt 2 f80 boxes first hand.
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I think I know why those two transmissions needed to be rebuilt.