I rebuilt my 915 box and when I measured the new out of box
syncro and dog tooth assemblies as per the shop manual specs I found them to be out of tolerance.I lightly sanded the syncro's on a lathe and then carefully sand blasted to the original finish back into the spec. My transmission shifts very smooth and fast with
no problem chirping 2nd gear without power shifting..Just my 2 cents!
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Mully 911
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