In theory not, because it won't change down until the rev's would not exceed
the red line. Older boxes and overdrives did not have this protection and
you could overspeed the engine.
I did manage to blow up a 4 speed box in a 735 in 1991 by shifting from
drive to reverse at ~3,000rpm. I was however being distracted by the maniac
with a machete who was trying to hack his way through the windscreen at the
He was a would be burglar. He tried claiming pre-emptive self defence on
the reverse of those grounds, but his guesses at names were all wrong. It
took the police six months to find him, but then he got done.
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