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Re: T10 or M20?
M20's are supposed to be weak?? never heard that.
"back in the day"-----the m20 is a good 4 speed. If you are running a boat load of horsepower then go with the rock crusher (m22)--but Im telling you--its noisy,
I know many "old" racers who used to use the m20 or m21 (close ratio) for drag racing behind 396's and 427's, 454's. You could power shift them all day, very seldom did you hear of one exploding or breaking. If your synchros get excessively worn from hard shifting, you might chip a few teeth.
So, the t10 is a good trans. but dont ever be afraid of an m20 (now with all that said, I will also tell you that another good LOW horsepower option is the saginaw 4 spd. but if youve got over 300 hp, Id pass on that one)
One final thought---a "good" m20 will cost you from 600 on up. Rebuilding one with new synchros isnt a hard job either. Personally, Im replacing a 700R with a '72 m20 in my current build.
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